id int64 0 1.03k | video_path stringlengths 16 95 | duration int64 1 3.27k | dimension stringclasses 7
values | multiple-choice bool 2
classes | question stringlengths 24 1.07k | choices dict | answer stringlengths 1 271 | reasoning listlengths 2 12 |
|---|---|---|---|---|---|---|---|---|
200 | video/MMVU/Electrical_Engineering_0.mp4 | 30 | Video Knowledge Reasoning | true | What kind of filter is the circuit implemented? | {
"A": "Low-pass Filter",
"B": "Band-pass Filter",
"C": "Band-stop Filter",
"D": "All-pass Filter",
"E": "High-pass filter"
} | D | [
"1. At the beginning of the video, an electronic component moves from left to right, with a waveform diagram below it.",
"2. Upon observation, it is noticed that after the component moves, the lower waves in the waveform all become higher.",
"3. It can be seen that the circuit processes different frequency comp... |
201 | video/MMVU/Electromagnetism_1.mp4 | 10 | Video Knowledge Reasoning | true | Which law explains the phenomenon mentioned above? | {
"A": "Lenz’s Law",
"B": "Kepler’s Third Law",
"C": "Newton’s First Law",
"D": "Hooke’s Law",
"E": "Coulomb's Law"
} | A | [
"1. In the first two seconds of the video, the suspended metal object is constantly swinging.",
"2. From the third to the sixth second, a copper-like plate is placed beneath the metal, after which the metal stops swinging.",
"3. As the magnet moves across an area on the copper plate, the change in magnetic flux... |
202 | video/MMVU/Electrical_Engineering_1.mp4 | 75 | Video Knowledge Reasoning | true | Why do light bulbs glow differently when different metal rods are inserted? | {
"A": "Different metal rods have different magnetic permeabilities. Metal rods with high magnetic permeability make light bulbs brighter.",
"B": "Different metal rods have different resistances. Metal rods with lower resistance make the bulb brighter.",
"C": "Different metal rods have different magnetic permeabi... | C | [
"1. From the sixth to the tenth second of the video, the person holds the first metal rod and moves it inside the coil. The light bulb shows no significant change in brightness, and the text displayed above reads \"Copper Rod.\"",
"2. From the 20th to the 30th second, the second metal rod is moved inside the coil... |
203 | video/MMVU/Clinical_Medicine_0.mp4 | 20 | Video Knowledge Reasoning | true | What could the brown stuff in the video be? | {
"A": "peptidyltransferase",
"B": "RNA polymerase",
"C": "DNA polymerase",
"D": "Topoisomerase",
"E": "Spliceosome complex"
} | B | [
"1. The video first shows a diagram of a double helix DNA being unwound.",
"2. From the third to the fifteenth second, it appears that the DNA is undergoing specific pairing with other substances.",
"3. From the 18th to the 20th second, the video displays a strand of RNA, which seems to be the result of the pre... |
204 | video/MMVU/Computer_Science_2.mp4 | 48 | Video Knowledge Reasoning | true | The algorithm demonstrated in the video is which common algorithm? | {
"A": "Bubble Sort",
"B": "Merge Sort",
"C": "Insertion Sort",
"D": "Selection Sort",
"E": "Heap Sort"
} | C | [
"1. At the beginning of the video, bars of different heights are displayed.",
"2. Starting from the third second, the bars begin to turn red one by one.",
"3. From the 10th to the 18th second, before the fourth bar turns red, it is compared with the preceding bars and is finally positioned as the second one.",
... |
205 | video/MMVU/Astronomy_0.mp4 | 15 | Video Knowledge Reasoning | true | The motion shown in the video satisfies which law? | {
"A": "Ohm's Law",
"B": "Hooke's Law",
"C": "Archimedes' Law",
"D": "Joule's Law",
"E": "Kepler's Laws"
} | E | [
"1. The video shows a simulation of planetary motion, with the surrounding planets orbiting the central star in circular paths.",
"2. Kepler's Laws of Planetary Motion were proposed by Johannes Kepler in the early 17th century, describing the laws of planetary motion around the sun."
] |
206 | video/MMVU/Electromagnetism_2.mp4 | 98 | Video Knowledge Reasoning | true | This substance increases conductivity in the solution. The substance added is **_____**. | {
"A": "Water",
"B": "Salt",
"C": "soil",
"D": "Sugar",
"E": null
} | B | [
"1. From the beginning of the video to the sixth second, the person places both hands on the left and right sides of the instrument, respectively. The indicator needle is deflected to the right. After removing the hands, the needle deflects to the left.",
"2. From the 15th to the 45th second, the experimenter pla... |
207 | video/MMVU/Literature_0.mp4 | 96 | Video Knowledge Reasoning | true | According to the video,what's the narration perspective? | {
"A": "Others",
"B": "omniscient narrator",
"C": "Limited omniscient",
"D": "second-person",
"E": "third-person"
} | E | [
"1. The clip in the video is an excerpt from Truman's World and is presented primarily in the third person.",
"2. Un punto de vista omnisciente limitado es aquel en el que el narrador conoce los pensamientos internos de algunos personajes específicos, pero no de todos ellos. Un narrador omnisciente, por otro lado... |
208 | video/MMVU/Literature_0.mp4 | 96 | Video Knowledge Reasoning | true | The narrative style of the video most closely aligns with which literary movement? | {
"A": "Romanticism",
"B": "Postmodernism",
"C": "Realism",
"D": "Naturalism",
"E": "Symbolism"
} | B | [
"1. After the video starts, the camera jumps multiple times, and the scenes keep changing.",
"2. The narrative style of the video closely aligns with Postmodernism, characterized by disjointed scenes, abrupt transitions, mixed media, and themes of reality versus illusion. It features fragmentation, metafictional ... |
209 | video/MMVU/Electromagnetism_4.mp4 | 27 | Video Knowledge Reasoning | true | Why do LED bulbs light up? | {
"A": "There is a power source inside the light bulb.",
"B": "The gravitational potential energy of the bulb is converted into electrical energy, making the bulb glow.",
"C": "There is a magnetic field in the environment, and the light bulb cuts the magnetic field lines to generate an induced electromotive force... | C | [
"1. In the video, a pair of tweezers holds an LED and moves it from left to right. Text at the bottom indicates that the LED is near a magnetic field, and during the movement, the LED keeps flashing.",
"2. The light bulb cuts through the magnetic field lines in the surrounding magnetic field, generating an induce... |
210 | video/MMVU/Clinical_Medicine_1.mp4 | 110 | Video Knowledge Reasoning | true | Which step of the chest examination is not shown in the video? | {
"A": "Palpation",
"B": "Percussion",
"C": "Inspection",
"D": "Auscultation",
"E": "Both B and D"
} | E | [
"1. From 0:00 to 0:10, the doctor first observes the patient's tracheal position and chest contour, which are part of the Inspection step.",
"2. From 0:18 to 0:23 and from 0:59 to 1:05 the doctor uses their hands to check the tracheal position and apex beat, which falls under Palpation. Therefore, the video does ... |
211 | video/MMVU/Electromagnetism_5.mp4 | 19 | Video Knowledge Reasoning | true | Why is the electromagnetic wave intensity measured the second time weaker than the first time? | {
"A": "The second time the mobile phone activity was different, the electromagnetic waves emitted were of low power.",
"B": "The second time the mobile phone was placed in the barbed wire fence, the spread of electromagnetic waves was hindered.",
"C": "The second time, the mobile phone was farther away from the ... | B | [
"1. From the beginning of the video to the 7th second, the mobile phone is placed directly on the experimental table. This is the first experiment.",
"2. From 0:08 to 0:19, the experimenter placed the mobile phone inside the barbed wire fence. Conductive metals can reflect, absorb, and offset electromagnetic wave... |
212 | video/MMVU/Chemistry_1.mp4 | 35 | Video Knowledge Reasoning | true | If the solution in the video is silver nitrate solution, what is the most likely type of reaction that would occur in the test tube? | {
"A": "Decomposition reaction",
"B": "Single replacement reaction",
"C": "Double displacement reaction",
"D": "Precipitation reaction",
"E": "Acid-base neutralization reaction"
} | B | [
"1. From 0:00 to 0:22, a test tube contains a liquid, with a metal wire placed inside it, and a white solid appears to form on the surface.",
"2. From 0:23 to 0:35, the metal wire disappears, and a large amount of white precipitate forms at the bottom of the test tube, while the liquid turns light blue.",
"3. B... |
213 | video/MMVU/Electromagnetism_7.mp4 | 63 | Video Knowledge Reasoning | false | The physical instrument utilized in the experiment is called ________. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Electroscope | [
"1. From 0:00 to 0:18, the first set of experiments in the video shows a plastic rod that has been rubbed being brought near an instrument. The metal foil inside the instrument separates, indicating that the plastic rod is charged.",
"2. From 0:20 to 1:03, the second set of experiments in the video shows that whe... |
214 | video/MMVU/Electromagnetism_7.mp4 | 63 | Video Knowledge Reasoning | true | Why does the wooden stick rotate with the plastic strip? | {
"A": "Wooden strips and plastic rods with different electrical charges attract each other.",
"B": "The wooden stick and the plastic rod have the same electric charge and repel each other.",
"C": "The plastic rod is charged, but the wooden strip is uncharged. The plastic rod ionizes the air to make the wooden st... | E | [
"1. From 0:00 to 0:18, the glass rod, after being rubbed, is brought into contact with the instrument, causing the metal foil inside the instrument to separate. This indicates that the glass rod becomes charged after rubbing.",
"2. The wooden stick and the plastic rod have the same electric charge and repel each ... |
215 | video/MMVU/Electromagnetism_9.mp4 | 72 | Video Knowledge Reasoning | false | The video demonstrates the ________ effect. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Triboelectric (static electricity) | [
"1. From the beginning of the video to 0:04, the experimenter rubs a plastic water pipe with a piece of cloth.",
"2. From 0:04 to 0:12, the plastic water pipe is brought near an aluminum foil cup on the table, and the aluminum foil cup is attracted to the metal rod.",
"3. After the cloth is rubbed against the p... |
216 | video/MMVU/Electromagnetism_9.mp4 | 72 | Video Knowledge Reasoning | true | Why is aluminum foil attracted to the rod in the video? | {
"A": "The aluminum foil becomes charged when rubbed against the cloth, attracting the rod.",
"B": "The aluminum foil is charged, the rod is not, and they attract each other.",
"C": "The aluminum foil and the rod have different charges and they attract each other.",
"D": "The aluminum foil contains water and h... | E | [
"1. From the beginning of the video to 0:04, the experimenter rubs a plastic water pipe with a piece of cloth.",
"2. From 0:04 to 0:12, the plastic water pipe is brought near an aluminum foil cup on the table, and the aluminum foil cup is attracted to the metal rod.",
"3. There will be a charge transfer after t... |
217 | video/MMVU/Chemistry_2.mp4 | 56 | Video Knowledge Reasoning | true | What is the formula mass of the generated gas? | {
"A": "32g",
"B": "40g",
"C": "40 amu",
"D": "30amu",
"E": "44amu"
} | E | [
"1. At the 8th second of the video, the experimenter begins to add a white solid into the beaker, with the subtitle indicating that it is sodium hydroxide.",
"2. Around the 55th second, hydrochloric acid is added to the beaker.",
"3. The question asks for the formula mass of the gas produced. Formula mass is ca... |
218 | video/MMVU/Clinical_Medicine_3.mp4 | 37 | Video Knowledge Reasoning | false | In disease shown in the video, core body temperature rises above ______ degrees Celsius, leading to life-threatening conditions. Based on the video description, the victim is likely experiencing this condition. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | 41 | [
"1. At the beginning of the video, a person is shown lying on the grass, with bright sunlight around.",
"2. From 0:02 to 0:29, another person approaches to check on the fallen individual and helps him to lie down in the shade under a tree to avoid the sunlight.",
"3. From 0:30 to 0:37, the rescuer removes the c... |
219 | video/MMVU/Computer_Science_4.mp4 | 20 | Fundamental Temporal Reasoning | true | What is the fourth number that turns red in the video? | {
"A": "1",
"B": "2",
"C": "3",
"D": "4",
"E": "5"
} | A | [
"1. At the third second of the video, the number 5 at the top turns red.",
"2. At the fifth second of the video, the number 2 in the second row turns red, making it the second number to turn red.",
"3. At the seventh second of the video, the 8 on the second line turned red, which is the third number to turn red... |
220 | video/MMVU/Computer_Science_4.mp4 | 20 | Video Temporal Counting | true | How many different colors did the circle containing the number 2 appear in the video? | {
"A": "1",
"B": "2",
"C": "3",
"D": "4",
"E": "5"
} | C | [
"1. At the beginning of the video, the circle containing the number 2 is gray, just like the other numbers; this is the first color.",
"2. 0:04, the circle containing the number 2 turned red, which is the second color.",
"3. At 0:06, the circle containing the number 2 turned light red, which is the third color.... |
221 | video/MMVU/Biology_2.mp4 | 29 | Video Knowledge Reasoning | false | In the symbiotic relationship shown in the video, the type of symbiosis is known as **______________**. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Mutualism | [
"1. From 0:00 to 0:15, the video shows certain birds cleaning insects off the bodies of giraffes.",
"2. From 0:17 to 0:25, it displays scenes of birds cleaning the bodies of hippos.",
"3. From 0:26 to 0:29, it shows birds helping to clean the ears of deer.",
"4. The birds gain food, while the mammals receive ... |
222 | video/MMVU/Civil_Engineering_1.mp4 | 24 | Video Temporal Counting | true | How many people appear in the video? | {
"A": "0",
"B": "1",
"C": "2",
"D": "3",
"E": null
} | B | [
"1. At the beginning of the video, no people appear in the frame.",
"2. At 0:06 seconds, a staff member in yellow clothing appears in the shot.",
"3. Subsequently, until the end of the video, no new people appeared, so there was a total of one person."
] |
223 | video/MMVU/Electrical_Engineering_3.mp4 | 90 | Video Knowledge Reasoning | false | Based on the apparatus demonstrated in the video, this is a simple ______ generator. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | DC | [
"1. From 0:00 to 0:13, the video shows the movement of the instrument, with the indicator needle moving back and forth.",
"2. From 0:16 to 1:05, it displays the instrument after improvement. The improved instrument moves with the indicator needle only moving on the right side, indicating that the output is all po... |
224 | video/MMVU/Electromagnetism_15.mp4 | 44 | Video Temporal grounding | true | When does the bulb in the middle light up for the second time in the video? | {
"A": "0:12",
"B": "0:29",
"C": "0:03",
"D": "0:38",
"E": null
} | B | [
"1. 0:12-0:16, the middle bulb lights up for the first time and then goes out.",
"2. The second time the bulb lights up at 0:29, and it remains lit thereafter, so the time of the second lighting is 0:29."
] |
225 | video/MMVU/Electromagnetism_15.mp4 | 44 | Video Temporal grounding | true | How long did the light bulb on the right stay lit for the first time? | {
"A": "7 seconds",
"B": "1 second",
"C": "20 seconds",
"D": "40 seconds",
"E": null
} | A | [
"1. At 0:03 seconds, the right bulb is lit for the first time.",
"2. At 0:10 seconds, the right bulb was extinguished because it lasted for about 7 seconds."
] |
226 | video/MMVU/Chemistry_3.mp4 | 105 | Video Knowledge Reasoning | false | Based on the video, the tested solid substance is most likely **______________**. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | sodium | [
"1. From 0:00 to 0:09, the metal is stored in kerosene.",
"2. From 0:10 to 0:32, the metal is placed on a dish and cut. It is observed that the metal has a shiny surface and is easy to cut.",
"3. From 0:32 to 0:38, an electrical conductivity test is performed on the metal, and the small light bulb lights up, in... |
227 | video/MMVU/Chemistry_3.mp4 | 105 | Video Knowledge Reasoning | true | Which physical property of the substance is not demonstrated in the video? | {
"A": "Conductive",
"B": "Insoluble in oil",
"C": "Silver-white solid",
"D": "Flammable",
"E": "Soft texture"
} | D | [
"1. From 0:00 to 0:09, the metal is stored in kerosene, indicating that the solid is insoluble in oil and has a higher density than the oil.",
"2. From 0:10 to 0:32, the video shows that the solid can be easily cut with a knife, revealing a silver-white color, likely indicating it is a silver-white soft metal, po... |
228 | video/MMVU/Chemistry_3.mp4 | 105 | Temporal Spatial Reasoning | true | Where is the first piece of metal added to the beaker finally located? | {
"A": "On the table",
"B": "Sink to the bottom of the beaker",
"C": "Disappeared",
"D": "Floating on the water surface",
"E": null
} | C | [
"1. At 0:43, a small piece of cut metal was placed into the beaker, marking the first piece of metal placed into the beaker.",
"2. 0:44-1:00, the metal floats on the water surface and keeps moving, reacting with the water and gradually becoming smaller.",
"3. Around 1:11, the first piece of metal was no longer ... |
229 | video/MMVU/Electrical_Engineering_5.mp4 | 23 | Video Plot Analysis | false | Which object in the video, placed on the left or right, will reach the bottom first? | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Left side | [
"1. From 0:00 to 0:03, the objects on the left and right are simultaneously released.",
"2. From 0:03 to 0:06, the object on the left falls rapidly and quickly disappears from the video, while the object on the right falls slowly until it gradually disappears around 0:07. Therefore, the object on the left falls f... |
230 | video/MMVU/Electrical_Engineering_6.mp4 | 23 | Video Knowledge Reasoning | false | Based on the circuits shown sequentially in the video, the ____ circuit has a higher main branch current. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Second | [
"1. The video showcases two circuits, both utilizing resistors R1, R2, and R3.",
"2. 0:00-0:13, the first circuit is located in the center of the video, while the second circuit is in the lower left corner. The first circuit employs a series configuration, resulting in a higher equivalent resistance, while the se... |
231 | video/MMVU/Electrical_Engineering_7.mp4 | 79 | Video Temporal grounding | true | At what moment is the third metal rod inserted into the coil? | {
"A": "1:08",
"B": "0:18",
"C": "1:38",
"D": "0:38",
"E": null
} | D | [
"1. From 0:08 to 0:13, the experimenter moves the copper rod back and forth in the coil; this is the first metal rod.",
"2. From 0:24 to 0:33, the experimenter moves the iron rod back and forth in the coil; this is the second metal rod.",
"3. From 0:38 to 0:49, the experimenter moves the nickel rod back and for... |
232 | video/MMVU/Electrical_Engineering_7.mp4 | 79 | Video Plot Analysis | true | If the material of the first metal rod is changed to iron for the experiment, how will the brightness of the bulb change compared to before the change? | {
"A": "Brighten",
"B": "Dim",
"C": "Remain unchanged.",
"D": "The light bulb may break.",
"E": null
} | B | [
"1. From 0:08 to 0:13, the experimenter moves the copper rod back and forth within the coil. This is the first metal rod, and the bulb remains lit with no noticeable change in brightness.",
"2. From 0:24 to 0:33, the experimenter moves the iron rod back and forth within the coil. When the iron rod enters the coil... |
233 | video/MMVU/Computer_Science_9.mp4 | 135 | Video Temporal grounding | true | At what moment does the scene where multiple small circles form a large circle appear for the third time at the beginning of the video? | {
"A": "2:01",
"B": "1:11",
"C": "0:12",
"D": "Does not exist",
"E": null
} | D | [
"1. 0:00-0:09, the video shows small circles forming a large circle. This is the first display, and then the video switches to other scenes.",
"2. 0:14, the screen switches back to the small circle screen.",
"3. From then until the end of the video (2:15), the scene does not change again, so there is no third o... |
234 | video/MMVU/Pharmacy_6.mp4 | 99 | Video Temporal grounding | true | At what time does the map of India appear for the second time in the video? | {
"A": "Nonexistent",
"B": "0:10",
"C": "1:10",
"D": "0:29",
"E": null
} | A | [
"1. 0:06-0:11, an image of the map of India appears in the video, showing the number 30%.",
"2. Subsequently, until the end of the video (1:39), the map of India does not appear again, so the moment of the second appearance of the map of India does not exist."
] |
235 | video/MMVU/Basic_Medicine_3.mp4 | 98 | Video Temporal grounding | true | When does the image of the person in the video shrink for the second time? | {
"A": "Nonexistent",
"B": "0:38",
"C": "0:10",
"D": "0:48",
"E": "1:12"
} | B | [
"1. 0:00-0:02, The video only shows a character's image, and it is in a zoomed-in state.",
"2. At 0:03 seconds, an image of an esophageal examination appears in the center of the video, and the character image becomes smaller and is located in the lower left corner; this is the first time it is reduced.",
"3. A... |
236 | video/MMVU/Basic_Medicine_4.mp4 | 46 | Video Knowledge Reasoning | false | The fingernails and toenails depicted in the animation are related with **_____ phenomenon**. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Raynaud's phenomenon | [
"1. 0:12-0:40, the blue-tinted fingernails and toenails indicate cyanosis due to reduced blood flow from vasospasm, characteristic of Raynaud's phenomenon.",
"2. This disorder is linked to episodic vasospasm in the extremities, causing color changes, including blue discoloration. It is also a common clinical mani... |
237 | video/MMVU/Electrical_Engineering_9.mp4 | 32 | Video Knowledge Reasoning | true | Why are these two objects attracted to each other? | {
"A": "The plastic rod becomes charged when rubbed against the cloth, attracting the uncharged aluminum can.",
"B": "The aluminum can is charged, the plastic rod is uncharged, and they attract each other.",
"C": "The air is moist, and the water molecules in the air hold the aluminum can and the plastic rod toget... | A | [
"1. From 0:17 to 0:20, the experimenter brings a glass rod close to the soda can, but there is no noticeable phenomenon.",
"2. From 0:20 to 0:25, the experimenter rubs a glass rod with a piece of cloth. ",
"3. From 0:26 to 0:32, the experimenter brings the rubbed glass rod close to a soda can, and the can is a... |
238 | video/MMVU/Electrical_Engineering_9.mp4 | 32 | Video Knowledge Reasoning | true | To make the phenomenon in the video more noticeable, which of the following actions would be most effective? | {
"A": "Rubbing the straw more vigorously with the tissue.",
"B": "Remplaçant la paille en plastique par une tige en métal.",
"C": "Wrapping the aluminum can with insulating material.",
"D": "Connecting the aluminum can to the ground.",
"E": "Using a different material for the straw that has a lower tendency ... | A | [
"1. From 0:17 to 0:20, the experimenter brings a glass rod close to the soda can, but there is no noticeable phenomenon.",
"2. From 0:20 to 0:25, the experimenter rubs a glass rod with a piece of cloth. ",
"3. From 0:26 to 0:32, the experimenter brings the rubbed glass rod close to a soda can, and the can is a... |
239 | video/MMVU/Biomedical_Engineering_4.mp4 | 11 | Video Knowledge Reasoning | true | The video reflects various types of properties. | {
"A": "Melting property",
"B": "Dissolution property",
"C": "Thermodynamic characteristics",
"D": "Extensional-thickening rheological properties",
"E": "Optical characteristics"
} | D | [
"1. 0:03-0:11, when lifted, the tool in the clear liquid is easily removed, while the tool in the red liquid pulls the liquid up into a thick, elastic filament that stretches significantly before separating from the liquid.",
"2. Hydrogels exhibit both viscous and elastic behavior, with rheological properties, pa... |
240 | video/MMVU/Materials_Science_4.mp4 | 70 | Video Temporal grounding | true | How many seconds was the instrument table open in the video? | {
"A": "0 seconds",
"B": "About 5 seconds",
"C": "Around 17 seconds",
"D": "Around 30 seconds",
"E": null
} | C | [
"1. 0:02-0:07, the experimenter at the instrument table slowly opens it, followed by a series of operations.",
"2. 0:20-0:23, the instrument table is slowly closed by the experimenter.",
"3. 1:05-1:09, the instrument platform is slowly opened again and remains open until the end of the video (1:10).",
"4. The... |
241 | video/MMVU/Civil_Engineering_5.mp4 | 60 | Video Knowledge Reasoning | true | Which of the following interventions would be best suited to prevent future events such as those shown in the video from occurring in the future? | {
"A": "Installing horizontal drainage systems to reduce groundwater pressure within the slope.",
"B": "Adjusting the slope to a gentler angle by removing material from the upper sections.",
"C": "Securing the cliff face with rock bolts and covering it with wire mesh to stabilize loose rocks.",
"D": "Planting d... | C | [
"1. From 0:00 to 0:45, a small amount of sand and soil can be seen falling in the video.",
"2. From 0:46 to 0:57, the sand and soil begin to collapse on a large scale, creating a significant amount of dust.",
"3. Option C, securing the cliff face with rock bolts and wire mesh, is identified as the most appropri... |
242 | video/MMVU/Civil_Engineering_5.mp4 | 60 | Video Knowledge Reasoning | true | What is the main reason for the phenomenon in the video? | {
"A": "Temperature",
"B": "Water",
"C": "Dynamite",
"D": "Human activity",
"E": "Gravity"
} | E | [
"1. From 0:00 to 0:45, a small amount of sand and soil can be seen falling in the video.",
"2. From 0:46 to 0:57, the sand and soil begin to collapse on a large scale, creating a significant amount of dust.",
"3. Aggregate soils are formed when soil is moved from its original position by gravity, such as during... |
243 | video/MMVU/Civil_Engineering_5.mp4 | 60 | Video Knowledge Reasoning | true | Which of the following is the most likely geological process that caused the phenomenon in the video, and what is the most suitable engineering investigation method to verify this process and provide a foundation for effective remedial design? | {
"A": "Freeze-thaw weathering causing rock fractures; conduct a geological site investigation including rock mass characterization and discontinuity surveys.",
"B": "Excess groundwater pressure weakening the slope; install groundwater monitoring wells and perform hydrogeological modeling.",
"C": "Surface erosion... | A | [
"1. From 0:00 to 0:45, a small amount of sand and soil can be seen falling in the video.",
"2. From 0:46 to 0:57, the sand and soil begin to collapse on a large scale, creating a significant amount of dust.",
"3. The primary geological process likely causing rockslides on the steep, rocky, and sparsely vegetate... |
244 | video/MMVU/Clinical_Medicine_12.mp4 | 19 | Video Knowledge Reasoning | false | Based on the pathological changes depicted in the video, this condition is referred to as _______. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Cirrhosis | [
"1. 0:00-0:12，the video shows liver changes from reddish-brown to pale brown with yellow dots. ",
"2. 0:13-0:19, the video shows risk factors include a high-fat diet, alcohol consumption, and diabetes.",
"3. These contribute to a chronic liver disease with regenerating nodules and fibrous septa. The condition i... |
245 | video/MMVU/Clinical_Medicine_12.mp4 | 19 | Video Knowledge Reasoning | true | What process is shown in the video? | {
"A": "Non-alcoholic fatty liver disease",
"B": "Viral hepatitis D",
"C": "Liver cirrhosis",
"D": "Alcoholic liver disease",
"E": "Drug-induced liver damage"
} | C | [
"1. 0:00-0:12，the video shows liver changes from reddish-brown to pale brown with yellow dots. ",
"2. 0:13-0:19, the video shows risk factors include a high-fat diet, alcohol consumption, and diabetes.",
"3. This process corresponds to liver cirrhosis. While distractors such as viral hepatitis D and alcoholic l... |
246 | video/MMVU/Civil_Engineering_6.mp4 | 27 | Video Knowledge Reasoning | true | Which part of site exploration is shown in the video? | {
"A": "Subsurface exploration in rocks",
"B": "Geophysical surveys",
"C": "Sampling in soils",
"D": "Cone penetration testing",
"E": "Hydrogeological testing"
} | C | [
"1. 0:01-0:05, the video shows disturbed samples being collected using the shell of a boring rig.",
"2. From 0:06 to 0:12, the collected sample is placed into a container, indicating a sampling process. Other options are not demonstrated in the video."
] |
247 | video/MMVU/Biomedical_Engineering_5.mp4 | 63 | Video Knowledge Reasoning | true | Which of the following biomedical engineering applications is most likely being illustrated? | {
"A": "The particles are used in photothermal therapy to ablate cancer cells upon near-infrared irradiation.",
"B": "The particles are used as carriers for targeted drug delivery in chemotherapy.",
"C": "The particles are serving as contrast agents in computed tomography (CT) imaging.",
"D": "The particles are... | E | [
"1. 0:33-0:54, where gold nanoparticles (yellow spheres with blue arrows pointing inward) attach to a larger structure (purple shape), causing it to change color (turning darker purple), and considering the properties of gold nanoparticles—biocompatibility, non-toxicity to cells, and not eliciting an immune respons... |
248 | video/MMVU/Electrical_Engineering_14.mp4 | 156 | Video Knowledge Reasoning | false | In the video, the experimenter constructed a simple electronic component using basic materials. This electronic component is a ____________. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Capacitor | [
"1. 0:26-1:56, the person creates a simple capacitor by layering aluminum foil (conductor) and paper (insulator), then rolling them together. This assembly forms two conductive plates separated by an insulating layer, characteristic of a capacitor.",
"2. 1:58-2:30, testing the device with a multimeter likely meas... |
249 | video/MMVU/Biomedical_Engineering_6.mp4 | 98 | Video Knowledge Reasoning | true | What weapon attack means is reflected in the video? | {
"A": "Weather weapon",
"B": "Satellite weapon",
"C": "Chemical and biological weapons",
"D": "Nuclear weapon",
"E": "Cold weapon"
} | C | [
"1. From 0:00 to 0:21, the video shows a group of people placing chemicals or other substances on the road.",
"2. From 0:35 to 0:45, a military vehicle is shown driving over the area where the chemicals were placed.",
"3. Starting from 0:45, the video shows the vehicle being damaged by the chemicals.",
"4. Si... |
250 | video/MMVU/Civil_Engineering_7.mp4 | 68 | Video Plot Analysis | false | Considering environmental loads, the collapse of the bridge in the video was primarily caused by excessive **______**. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Wind | [
"1. From 0:03 to 0:55, the video shows the bridge swaying back and forth in the wind, appearing very unstable.",
"2. Subsequently, from 0:56 to 1:08, it shows the collapse of the bridge, which continues to sway during the process.",
"3. Based on the above observations, the instability of the bridge is caused by... |
251 | video/MMVU/Civil_Engineering_9.mp4 | 46 | Video Temporal grounding | true | How long does the second worker appear in the video? | {
"A": "0 seconds",
"B": "10 seconds",
"C": "20 seconds",
"D": "30 seconds",
"E": null
} | C | [
"1. At the beginning of the video, there is a worker in the shot.",
"2. The camera gradually moves to the left, and around the 12th second, the second worker appears on the left side of the frame.",
"3. From the 27th second to the 32nd second, as the camera moves, the second worker gradually disappears from the... |
252 | video/MMVU/Biomedical_Engineering_8.mp4 | 96 | Video Knowledge Reasoning | true | Which phenomenon best explains the phenomenon shown in the video? | {
"A": "Magnetic attraction due to ferromagnetic properties of the particles.",
"B": "Thermal convection currents causing the upward movement of particles.",
"C": "Electrostatic forces causing attraction between the charged balloon and the particles.",
"D": "Capillary action drawing the powder upward through li... | C | [
"1. 0:17-1:00, a red balloon is lowered towards a mound of gelatin powder on a plate.",
"2. As the balloon approaches, thin strands of the powder reach up toward it, becoming thicker as the balloon gets closer. The behavior of gelatin powder reaching toward the balloon is best explained by electrostatic forces. T... |
253 | video/MMVU/Biomedical_Engineering_9.mp4 | 162 | Video Knowledge Reasoning | true | Which experimental equipment did not appear in the video? | {
"A": "Beaker",
"B": "Dropper",
"C": "Graduated cylinder",
"D": "Alcohol lamp",
"E": null
} | D | [
"1. 0:44-0:54, a graduated cylinder appeared in the shot.",
"2. 1:02-1:11, the experimenter uses a rubber-tipped dropper to drop liquid onto the pH tester for testing.",
"3. 1:14-1:40, a beaker is shown in the shot.",
"4. Therefore, two heads, a pipette, and a beaker appeared in the video, but an alcohol lamp... |
254 | video/MMVU/Literature_3.mp4 | 87 | Video Temporal Counting | false | How many times does the cutscene appear in the video? | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | 2 | [
"1. Around 0:30 seconds, after the little boy falls off his bike, he picks it up with his mother's help. Then, a cutscene of three bicycles moving appears, followed by a transition to the boy continuing to ride with his mother's assistance.",
"2. Around 1:26, the little boy is already able to ride the bike skillf... |
255 | video/MMVU/Literature_3.mp4 | 87 | Video Plot Analysis | true | Based on the narrative described in the video, which of the following themes is most prominently illustrated? | {
"A": "Persistence in the face of adversity leads to personal growth.",
"B": "The power of competition among peers drives success.",
"C": "The pursuit of knowledge without guidance leads to failure.",
"D": "The inevitability of destiny shapes one's path.",
"E": "The struggle between individual desires and so... | A | [
"1. From 0:00 to 0:23, the little boy was learning to ride a bicycle, but he rode unsteadily and fell off. He sat on the ground, feeling very frustrated.",
"2. From 0:24 to 0:30, the boy's mother helped him get the bicycle back up and encouraged him.",
"3. From 0:31 to 1:00, the little boy continued to practice... |
256 | video/MMVU/Computer_Science_22.mp4 | 49 | Video Knowledge Reasoning | false | The total number of swap operations required to sort the sequence from the initial setting in the video is _____. (including the swaps not yet demonstrated in the video) | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | 8 | [
"1. At the beginning of the video, there is a cartoon character on the left and a string of numbers on the right, arranged from top to bottom as 5, 1, 4, 8, 0, 6.",
"2. From 0:09 to 0:10, the character starts from the bottom and first compares the sizes of 0 and 6. Then it swaps the positions of 6 and 0, moving 6... |
257 | video/MMVU/Electromagnetism_22.mp4 | 81 | Video Knowledge Reasoning | true | Which of the following best explains the phenomenon in the video? | {
"A": "The proximity of the metal rod induces opposite charges on the near side of the sphere, neutralizing its net charge locally, preventing further discharges.",
"B": "The metal rod causes a redistribution of charges on the sphere's surface, enhancing the electric field between the rod and the sphere, which ion... | E | [
"1. When the power supply is activated, sparks appear where two thin metal contacts touch a suspended metal sphere.",
"2. 0:53-1:21, a metal rod is brought close to the sphere without touching it, and electrical discharges (arcs) occur between the rod.",
"3. Option E explains that the metal rod's proximity gene... |
258 | video/MMVU/Biomedical_Engineering_10.mp4 | 16 | Video Knowledge Reasoning | true | What chemical process is reflected in the video? | {
"A": "Oxidative degradation",
"B": "Molecular chain polymerization",
"C": "Enzymatische Zersetzung",
"D": "Hydrolysis",
"E": "Bulk degradation"
} | D | [
"1. At the beginning of the video, there is a small bottle, a pair of scissors, and a complex compound in the frame.",
"2. From 0:02 to 0:08, the scissors cut through the middle of the compound, dividing it into two compounds, which appears to be a process of decomposition.",
"3. From 0:10 to 0:13, a beaker app... |
259 | video/MMVU/Electromagnetism_23.mp4 | 176 | Video Temporal grounding | true | At what time is the voltage tester used for the third time in the video? | {
"A": "0:12",
"B": "1:22",
"C": "2:32",
"D": "1:50",
"E": null
} | C | [
"1. 0:23-0:33, the experimenter placed the assembled foil cup on the electroscope to test if it was charged; this was the first use of the electroscope.",
"2. 0:40-0:46, the experimenter directly placed the plastic rod on the electroscope to test whether it was charged. This was the second use of the electroscope... |
260 | video/MMVU/Clinical_Medicine_15.mp4 | 19 | Video Knowledge Reasoning | true | What is not included in the auscultation area in the video? | {
"A": "Aortic area",
"B": "Pulmonary area",
"C": "Left sternal border",
"D": "Mitral area",
"E": "Tricuspid area"
} | A | [
"1. From 0:00 to 0:03, the doctor's stethoscope is placed in the second intercostal space at the left margin of the sternum.",
"2. From 0:04 to 0:09, the doctor's stethoscope was placed in the third intercostal space at the left margin of the sternum.",
"3. From 0:10 to 0:13, the doctor's stethoscope was placed... |
261 | video/MMVU/Computer_Science_24.mp4 | 46 | Video Knowledge Reasoning | false | The algorithm being demonstrated is _______________. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Bubble Sort | [
"1. From 0 to 9 seconds, the number 6 is below the number 0, and then the larger number 6 swaps with the smaller number 0.",
"2. Entre 9 y 13 segundos, el número 6 está por debajo del número 8. No hay intercambio de lugares entre los dos.",
"3. For 14 to 17 seconds, the number 8 is below the number 4, and then ... |
262 | video/MMVU/Electrical_Engineering_20.mp4 | 20 | Video Knowledge Reasoning | false | In the circuit described in the video, a certain variable is shown to be adjusted. Using the symbols and/or numbers displayed in the video, describe at what value of the adjusted variable ______ the current reaches its maximum. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | \frac{1}{\sqrt{LC}} | [
"1. The video shows a circuit structure consisting of resistors (R), inductors (L), and capacitors (C) in series from 0 to 14 seconds.",
"2. Because the resistance (R), inductor (L), capacitor (C), and power supply peak V0 are fixed parameter values, only the power supply frequency can be adjusted.",
"3. In the... |
263 | video/MMVU/Basic_Medicine_14.mp4 | 180 | Video Knowledge Reasoning | true | What kind of cell death process is shown in the video? | {
"A": "Anoikis",
"B": "Necrosis",
"C": "Pyroptosis",
"D": "Apoptosis",
"E": "Autophagy"
} | D | [
"1. The video begins with an actively moving irregular cell, whose internal structures are clearly visible.",
"2. From 0:00 to 0:33, the cell's range of activity becomes increasingly limited, and its shape becomes more regular, approaching a circular form by around 0:30. Meanwhile, the internal structures gradual... |
264 | video/MMVU/Basic_Medicine_14.mp4 | 180 | Video Knowledge Reasoning | true | Which of the following molecular events is most likely responsible for initiating the process shown? | {
"A": "Activation of death receptors by Fas ligand (extrinsic apoptosis pathway)",
"B": "The release of cytochrome c from mitochondria activates the intrinsic apoptosis pathway.",
"C": "Activation of receptor-interacting protein kinases RIPK1 and RIPK3 inducing necroptosis",
"D": "Accumulation of autophagosome... | B | [
"1. The video begins with an actively moving irregular cell, whose internal structures are clearly visible.",
"2. From 0:00 to 0:33, the cell's range of activity becomes increasingly limited, and its shape becomes more regular, approaching a circular form by around 0:30. Meanwhile, the internal structures gradual... |
265 | video/MMVU/Biomedical_Engineering_13.mp4 | 129 | Video Knowledge Reasoning | false | The cell type observed in the video is __________. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Fungi | [
"1. From 0:00 to 0:31, the video shows the process of cell proliferation, with the number of cells in the frame continuously increasing and the image becoming more and more dense.",
"2. From 0:32 to 1:10, the camera focuses on several round cells. It can be seen that two cells in the center of the frame gradually... |
266 | video/MMVU/Biomedical_Engineering_13.mp4 | 129 | Video Knowledge Reasoning | true | What life activities of microorganisms are reflected in the video? | {
"A": "Cell lysis",
"B": "Dormant",
"C": "Microbial evolution",
"D": "Fission and budding",
"E": "Spore formation"
} | D | [
"1. From 0:00 to 0:31, the video shows the process of cell proliferation, with the number of cells in the frame continuously increasing and the image becoming more and more dense.",
"2. From 0:32 to 1:10, the camera focuses on several round cells. It can be seen that two cells in the center of the frame gradually... |
267 | video/MMVU/Electronics_and_Communication_12.mp4 | 60 | Video Temporal grounding | true | When did the fourth group of apples fall? | {
"A": "0:08-0:09",
"B": "0:30-0:31",
"C": "0:03-0:04",
"D": "0:18-0:19",
"E": "0:48-0:49"
} | D | [
"1. At 0:15-0:16, two apples from the first group fall, landing in the left and right boxes respectively.",
"2. 0:16-0:17, two apples from the second group fall.",
"3. 0:17-0:18, two apples from the third group fall.",
"4. 0:18-0:19, two apples from the fourth group fall."
] |
268 | video/MMVU/Clinical_Medicine_16.mp4 | 13 | Video Knowledge Reasoning | false | The man's allergic reaction is mediated by immunoglobulin **_____**. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | E | [
"1. From 0:00 to 0:01, the person in the video is holding a glass of milk, seemingly in the act of drinking it",
"2. From 0:02 to 0:06, the person's face in the video is covered with numerous pimples, which appears to be an allergic reaction.",
"3. The man's allergic reaction, characterized by urticaria after d... |
269 | video/MMVU/Clinical_Medicine_16.mp4 | 13 | Video Knowledge Reasoning | true | What other symptoms might the person in the video have? | {
"A": "Gastrointestinal bleeding",
"B": "Rhinitis and asthma",
"C": "Dermatitis herpetiformis",
"D": "Migraine headaches",
"E": "Diabetes"
} | B | [
"1. From 0:00 to 0:01, the person in the video is holding a glass of milk, seemingly in the act of drinking it.",
"2. From 0:02 to 0:06, the person's face in the video is covered with numerous pimples, which appears to be an allergic reaction.",
"3. As shown in the video, the man experiences an allergy to certa... |
270 | video/MMVU/Basic_Medicine_15.mp4 | 14 | Video Knowledge Reasoning | true | When the process shown in the video occurs, there are multiple genetic mutations at specific sites, what is their order? | {
"A": "p53, p16, K-RAS",
"B": "p53, K-RAS, p16",
"C": "p16, K-RAS, p53",
"D": "K-RAS, p53, p16",
"E": "K-RAS, p16, p53"
} | E | [
"1. From 0:03 to 0:07, the video shows the process of cells proliferating indefinitely, and at 0:08 it points out that cancer cells have similar characteristics.",
"2. From 0:09 to 0:13, the video animation depicts the process of cancer cells proliferating continuously in the pancreas.",
"3. According to the or... |
271 | video/MMVU/Computer_Science_27.mp4 | 127 | Video Temporal grounding | true | At approximately what time did the node change color for the third time? | {
"A": "0:27-0:28",
"B": "2:01-2:02",
"C": "1:13-1:14",
"D": "1:37-1:38",
"E": "2:05-2:07"
} | D | [
"1. At the beginning of the video, node d is yellow.",
"2. 0:07-0:08, node d changed from yellow to gray, this was the first color change.",
"3. 1:01-1:02, node d changed from gray to yellow, which is the second color change.",
"4. 1:37-1:38, node d changed from yellow to gray, which was the third color chang... |
272 | video/MMVU/Clinical_Medicine_18.mp4 | 17 | Video Knowledge Reasoning | false | Based on the symptoms depicted in the video, what is the most likely underlying condition causing the initial insomnia? | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Anxiety | [
"1. From 0:00 to 0:06, the video illustrates a little person tossing and turning in bed, unable to fall asleep.",
"2. From 0:07 to 0:14, it shows the little person beginning to worry about various things, such as not having done the laundry, or being scolded by the boss, and so on.",
"3. The video depicts a per... |
273 | video/MMVU/Electromagnetism_24.mp4 | 34 | Video Temporal grounding | true | At approximately what time does the highest value of the meter numbers in the lower left corner of the video appear? | {
"A": "0:00-0:03",
"B": "0:18-0:22",
"C": "0:31-0:34",
"D": "0:08-0:17",
"E": "0:04-0:08"
} | B | [
"1. 0:00-0:03, because the circuit was not connected, the value on the meter remained at 0.",
"2. 0:04-0:08, the experimenter connected the circuit, and the meter reading increased to 32.",
"3. 0:08-0:17, the circuit is disconnected again, and the meter reading returns to around 0.",
"4. 0:18-0:22, the experi... |
274 | video/MMVU/Basic_Medicine_16.mp4 | 132 | Video Temporal Counting | false | How many times was the process of measuring blood pressure shown in the video? | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | 4 | [
"1. 0:36-0:48, the video shows a female nurse helping a man measure his blood pressure, this is the first time it is shown.",
"2. 0:49-1:00, the shot shows a person measuring their own blood pressure, this is the second time it is shown.",
"3. 1:01-1:07, an elderly doctor is helping a woman measure her blood pr... |
275 | video/MMVU/Chemistry_7.mp4 | 105 | Video Knowledge Reasoning | false | At the end of the video, the liquid added to the beaker is known as _______. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Phenolphthalein | [
"1. Starting at 0:50, a small metal block was added to a beaker containing water. It can be observed that the metal reacted with the water, producing gas.",
"2. From 1:19 to 1:29, the experimenter collected the gas produced and directed it towards a small candle. The candle burned intensely for a moment before go... |
276 | video/MMVU/Electrical_Engineering_22.mp4 | 37 | Video Knowledge Reasoning | true | Why does the wig appear as shown in the video? | {
"A": "The wig gets electric charge from the spherical shell, and different hair strands with the same electric charge repel each other.",
"B": "The wig gets electric charges through friction, and different hair strands with the same charge repel each other.",
"C": "The strong wind in the environment blows the w... | A | [
"1. At the beginning of the video, the hair on the device hangs down naturally.",
"2. At 0:13, the experimenter turned on the device, and the hair on the instrument suddenly began to stand up in various directions.",
"3. This phenomenon is caused by the accumulation of charges of the same polarity on the wig. T... |
277 | video/MMVU/Biomedical_Engineering_14.mp4 | 58 | Video Knowledge Reasoning | true | What material production process is shown in the video? | {
"A": "Cellulose",
"B": "Fats",
"C": "Gelatin",
"D": "Metal alloys",
"E": "Glass"
} | C | [
"1. From 0:00 to 0:20, the video shows the cutting and processing of pigskin.",
"2. From 0:25 to 0:57, it displays the material that has been processed into a fibrous-like substance.",
"3. Based on the raw material and the form of the processed material, it can be inferred that the material being processed is G... |
278 | video/MMVU/Biology_5.mp4 | 60 | Video Knowledge Reasoning | false | Based on the locations of transcription and translation shown in the video, the cell depicted is a(n) **_______** cell. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | eukaryotic | [
"1. From 0:00 to 0:03, the camera gradually moves into a spherical object, which is likely to be the cell nucleus.",
"2. From 0:04 to 0:15, the first processing step, namely transcription, takes place within the cell nucleus.",
"3. From 0:16 to 0:19, the product of transcription is transported out of the cell n... |
279 | video/MMVU/Biology_5.mp4 | 60 | Video Knowledge Reasoning | false | Which part of the cell does the video show for a longer duration? | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": null
} | Cytoplasm | [
"1. 0:00-0:03, the camera gradually moves into a spherical object, which is presumed to be a cell nucleus.",
"2. 0:04-0:15, the first processing step, which is transcription, takes place inside the cell nucleus.",
"3. 0:16-0:19, the product of transcription is sent out of the nucleus, presumably entering the cy... |
280 | video/MMVU/Electronics_and_Communication_14.mp4 | 13 | Video Knowledge Reasoning | false | Based on the phenomenon shown in the video and considering the direction of the blue arrows, this indicates that the system satisfies the ____ theorem. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Reciprocity | [
"1. 0:03-0:13, the video shows a signal tower with both inward and outward blue arrows, indicating that the tower is both transmitting (outward arrows) and receiving (inward arrows) electromagnetic waves.",
"2. This characteristic aligns with the Reciprocity Theorem."
] |
281 | video/MMVU/Electromagnetism_25.mp4 | 84 | Video Knowledge Reasoning | false | What is the purpose of the glass box in the video? | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Protection | [
"1. 0:00-0:10, the experimenter placed the glass box on the equipment and then began the experiment.",
"2. 0:40-0:50, as the two aluminum plates approach each other, an electric arc is generated within the instrument inside the glass box, presenting a certain risk factor.",
"3. 0:55-1:23, as a metal tip approac... |
282 | video/MMVU/Chemistry_8.mp4 | 26 | Video Knowledge Reasoning | false | In the experiment, the white smoke is _______. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Ammonium chloride | [
"1. At the beginning of the video, a tube can be seen connecting two sealed containers.",
"2. At 0:05-0:10, the experimenter added NH₃ to the left container.",
"3. 0:11-0:17, the experimenter added HCl to the container on the right, and subsequently, a large amount of white smoke was produced in this container.... |
283 | video/MMVU/Clinical_Medicine_20.mp4 | 17 | Video Knowledge Reasoning | false | In the video, the symptoms of the character with buds on their head often occur during REM sleep. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | REM | [
"1. From 0:00 to 0:07, in the animation, the character with buds is sleeping but still moving his mouth, and a yellow speech bubble appears. It can be inferred that this is meant to show that he is talking in his sleep.",
"2. The character with a sprout on its head is depicted sleep-talking in the video, which is... |
284 | video/MMVU/Clinical_Medicine_21.mp4 | 16 | Video Knowledge Reasoning | false | In the animation, considering the working mechanism of the cell shown in the video, it is generally believed that the function of this cell belongs to the __________ line of defense of the immune system. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Second | [
"1. From 0:05 to 0:07, the animation shows a nail piercing the skin, with pathogens from the nail entering the cells.",
"2. From 0:08 to 0:16, a certain type of cell moves to the location of the pathogen and engulfs the invading pathogen.",
"3. Phagocytosis by cells is part of the body's second line of defense ... |
285 | video/MMVU/Basic_Medicine_19.mp4 | 40 | Video Knowledge Reasoning | true | Based on the video, which human chromosome is the disease associated with? | {
"A": "Chromosome 3",
"B": "Chromosome 15",
"C": "Chromosome 17",
"D": "Chromosome 18",
"E": "Chromosome 21"
} | E | [
"1. From 0:05 to 0:18, the video highlights the person's head, and the subtitle indicates that he has the symptoms of \"FLATTENED, BROAD FACE, NARROWED EYES.\"",
"2. From 0:19 to 0:27, the text shows that the person has the symptoms of \"LEARNING DIFFICULTIES, SHORTER THAN AVERAGE LIFE EXPECTANCY.\"",
"3. From ... |
286 | video/MMVU/Computer_Science_36.mp4 | 101 | Video Temporal grounding | true | What is the moment of the fourth color change of the number 3 among the numbers shown at the beginning of the video? | {
"A": "0:10",
"B": "1:10",
"C": "0:25",
"D": "1:25",
"E": null
} | C | [
"1. At the beginning of the video, the number 3 is green. Around 0:08 seconds, the 3 turns red, which is the first color change of the number 3.",
"2. At 0:12, the number 3 changed from red to white, marking the second color change for this number.",
"3. 0:16, the number 3 changed from white to green, marking t... |
287 | video/MMVU/Computer_Science_36.mp4 | 101 | Temporal Spatial Reasoning | true | Within the first 30 seconds of the video, which number appears third most frequently on the far left? | {
"A": "1",
"B": "2",
"C": "3",
"D": "4",
"E": "5"
} | E | [
"1. At the beginning of the video, the number 3 is on the left.",
"2. At 0:03, the number 5 moved to the far left, then moved back to its original position at 0:05, while the number 3 remained on the far left.",
"3. At 0:12, the number 3 moved to the right of the number 2, making the number 2 the leftmost numbe... |
288 | video/MMVU/Electronics_and_Communication_16.mp4 | 72 | Video Knowledge Reasoning | false | During the video, an application example of the ____ theorem is demonstrated. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Nyquist–Shannon sampling | [
"1. From 0:01 to 0:03, the video samples a small segment of a continuous square wave and places it within a coordinate axis.",
"2. From 0:04 to 0:26, the square wave within the coordinate axis is resampled and marked with several points. ",
"3. From 0:27 to 0:39, the resampled square wave is transmitted to a s... |
289 | video/MMVU/Computer_Science_37.mp4 | 139 | Video Temporal grounding | true | At approximately what time does the person show the third note to the camera? | {
"A": "1:12",
"B": "0:13",
"C": "1:54",
"D": "2:01",
"E": null
} | A | [
"1. 0:11-0:13, the person in the video shows a small piece of paper to the camera, which seems to have some letters written on it, possibly pointing to something else.",
"2. 0:20-0:21, a second small note is displayed, with similar content written on it, and there is a small arrow that seems to point to the next ... |
290 | video/MMVU/Computer_Science_37.mp4 | 139 | Fundamental Temporal Reasoning | false | What is the difference in content between the first two notes shown by the person in the video? | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | A small arrow was added on the second note. | [
"1. 0:11-0:13, the person in the video shows a small piece of paper to the camera, which seems to have some letters written on it \"next to agg,\" seemingly pointing to something else.",
"2. 0:20-0:21, a second small note is shown, with the same letters as the first note, but with an additional small arrow that s... |
291 | video/MMVU/Biomedical_Engineering_17.mp4 | 133 | Video Knowledge Reasoning | false | The phenomenon illustrated in the video is called a gene ______. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Drive | [
"1. From 0:00 to 0:16, the presenter illustrated through drawing how a special gene was edited into the DNA.",
"2. From 0:20 to 0:33, the special gene appeared to be edited into a more complex structure.",
"3. From 0:37 to 0:55, the mating and reproduction process of mosquitoes carrying a special gene is shown,... |
292 | video/MMVU/Civil_Engineering_23.mp4 | 50 | Video Knowledge Reasoning | true | Which metric is used to measure slope stability of different materials in the video? | {
"A": "cohesion coefficient",
"B": "Slope geometry",
"C": "Soil properties",
"D": "Angle",
"E": "Plasticity index"
} | D | [
"1. 0:00-0:10, The person in the video stacks a pile of white objects and records the slope.",
"2. 0:11-0:32, The person then piles up a heap of black solid objects and records the slope.",
"3. 0:33-0:47, The process of piling up a heap of persimmons is demonstrated, and the slope is recorded.",
"4. 0:48-0:50... |
293 | video/MMVU/Chemistry_9.mp4 | 105 | Video Knowledge Reasoning | true | Based on the phenomena observed in the video, which of the following options describes a physical property of the solid substance? | {
"A": "Reagiert heftig mit Luft",
"B": "soluble in oil",
"C": "Black color",
"D": "Soft Alkali metal",
"E": "Insoluble in water"
} | D | [
"1. 0:00-0:09, it can be observed that the solid is stored in a liquid similar to oil, suggesting that it is likely insoluble in oil -> B is incorrect.",
"2. 0:23-0:30, the video shows that the solid can be cut with a knife and the cut surface appears silver-white, indicating that it is likely an alkali soft meta... |
294 | video/MMVU/Chemistry_9.mp4 | 105 | Video Knowledge Reasoning | true | Based on the observations described in the video, what was the primary purpose of using the small electrical device during the experiment? | {
"A": "To determine the hardness of the solid substance.",
"B": "To test if the solid substance reacts chemically when electrified.",
"C": "Demonstrare le proprietà magnetiche della sostanza solida.",
"D": "To test the electrical conductivity of the solid substance.",
"E": "To observe if the solid substance ... | D | [
"1. From 0:35 to 0:44, the experimenter touches the cut surface of the metal with a small electrical device.",
"2. The setup shown in the video with a battery pack and prongs aligning with conductivity testing, particularly comparing the shiny interior and gray exterior"
] |
295 | video/MMVU/Electrical_Engineering_26.mp4 | 49 | Video Knowledge Reasoning | true | Why did the two balls fall slower in the second experiment than in the first? | {
"A": "The first two balls are magnet balls. There are magnets under the tube, and the balls are driven downward.",
"B": "The second time the two small balls are magnet balls, there are magnets under the tube, and the small balls are subject to upward resistance.",
"C": "The second time, the two small balls are ... | C | [
"1. From 0:00 to 0:22 is the first experiment, in which two ordinary balls are placed into an aluminum tube and fall quickly.",
"2. From 0:23 to 0:49 is the second experiment, in which the balls are replaced with balls that have strong magnetism and fall slowly inside the aluminum tube.",
"3. The first time the... |
296 | video/MMVU/Clinical_Medicine_24.mp4 | 35 | Video Knowledge Reasoning | false | The “Y”-shaped cell shown at the beginning of the video is most likely an ______. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Immunoglobulin E (IgE) | [
"1. From 0:00 to 0:10, the “Y”-shaped cell appears to have parasitized the purple substance.",
"2. From 0:11 to 0:26, the video shows that the purple substance, after being parasitized, seems to be located inside the human body.",
"3. 0:27-0:35, the baby exhibits symptoms such as vomiting, indicating that the '... |
297 | video/MMVU/Clinical_Medicine_24.mp4 | 35 | Video Knowledge Reasoning | true | What is the most likely cause of this reaction in the body? | {
"A": "Autoimmune response",
"B": "food allergy",
"C": "Food intolerance",
"D": "Histamine deficiency",
"E": "None of the above"
} | B | [
"1. From 0:00 to 0:10, the “Y”-shaped cell appears to have parasitized the purple substance.",
"2. From 0:11 to 0:26, the video shows that the purple substance, after being parasitized, seems to be located inside the human body.",
"3. 0:27-0:35, the baby exhibits symptoms such as vomiting, indicating that the '... |
298 | video/MMVU/Clinical_Medicine_24.mp4 | 35 | Video Knowledge Reasoning | true | Based on the immune response and symptoms demonstrated in the video, and considering the underlying immune mechanisms, which interleukin plays a dominant role in this process and finally contributes to the symptoms? | {
"A": "Interleukin-2 (IL-2)",
"B": "Interleukin-4 (IL-4)",
"C": "Interleukin-5 (IL-5)",
"D": "Interleukin-10 (IL-10)",
"E": "Interleukin-12 (IL-12)"
} | B | [
"1. From 0:00 to 0:10, the “Y”-shaped cell appears to have parasitized the purple substance.",
"2. From 0:11 to 0:26, the video shows that the purple substance, after being parasitized, seems to be located inside the human body.",
"3. 0:27-0:35, the baby exhibits symptoms such as vomiting, indicating that the '... |
299 | video/MMVU/Biomedical_Engineering_19.mp4 | 91 | Video Knowledge Reasoning | false | Assume the small blue particles in the video are oligopeptide, the structure formed by particle motion in the video is called __________. | {
"A": "",
"B": "",
"C": "",
"D": "",
"E": ""
} | Hydrogel | [
"1. At the beginning of the video, a cluster of blue particles is shown to be in constant motion.",
"2. Around 0:25, some of the blue particles at the bottom can be seen gathering together.",
"3. Around 1:29, most of the particles can be seen having gathered together.",
"4. Particles clump together, showing s... |
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