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calibration-knowledge-large

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[ { "content": "Is there someone you hate? Well, maybe you don't really hate them. But you get really angry every time you think of them. If you don't let this anger go, it can turn into bitterness Bitterness appears when we can't forgive someone who has hurt us or made us angry. Someone might say or do somethi...
[ { "content": "Mrs. Jackson was a rich woman. She had many friends. She liked cooking very much and she often invited her friends to her big house. One day, she invited some of her friends to lunch. She wanted very much to try a new way of cooking a fish, and she was very pleased with herself when the dish was r...
[ { "content": "Hello, I'm Severn Suzuki speaking for E.C.O. -- The Environmental Children's Organization. Coming here today, I am fighting for my future. I am here to speak for all generations to come. I am here to speak on behalf of the starving children around the world whose cries go unheard. I am here to s...
[ { "content": "At Christmas,1871,Edison,the famous American scientist,got married to Mary. Lots of their friends came to their wedding ceremony . At about two in the afternoon,Edison suddenly thought out a good way to solve the problem on the automatic telegraph after the wedding. So he said to the bride ,\"I'll...
[ { "content": "DIY sailor Owen Warboys has finally launched his homemade boat -- after spending nearly 30 years building it in his mum's garden. Owen, 66, a retired engineer from Hordle, New Milton, Hants, first started work on the 40ft--long boat in 1982 because he could not afford to buy his own. He told mum E...
[ { "content": "American and British people both speak English of course. But sometimes it does not seem like the same language. In fact, there are some important differences between British English and American English. First of all, they sound very different. Often, Americans don't say each word separately. The...
[ { "content": "Your lucky Day This is a fortune-telling song, It is popular among English Children. Parents use it to teach their young children the days of the week. The song uses the day of the week a child was born on to tell the child's future. Monday's child has a beautiful face. Tuesday's child is full of ...
[ { "content": "Which of these can be recycled in an attempt to conserve resources?\n\nChoices:\nA. gasoline\nB. sunlight\nC. aluminum\nD. natural gas", "role": "user" }, { "content": "C. aluminum", "role": "assistant" } ]
[ { "content": "Many of the old sayings using animals to predict the weather are folklore , but not all. It's still unknown how animals can predict the weather, but limited research and acute observations have proved the animal kingdom's ability to notice changes before we do. Through their highly developed sense...
[ { "content": "Windy, cloudy, rainy, and cold are words that help describe\n\nChoices:\nA. evaporation\nB. deposition\nC. matter\nD. weather", "role": "user" }, { "content": "D. weather", "role": "assistant" } ]
[ { "content": "Recently, many shoppers chose to avoid the crazy crowds and do their holiday shopping from the comfort of their computer.Sales at online stores gained by more than 15%, making it the biggest season ever.But people are also returning those purchases at record rates, up 8% from last year. What went ...
[ { "content": "Now and then we all get ill. Then we usually go to see a doctor. Doctors know a lot about what makes us ill. They may give us something to take. The medicine often makes us well again. But sometimes the doctor's medicine doesn't work. A sick person does not get well. The pain doesn't go away. Ther...
[ { "content": "One day my 13-year-old daughter told me that she was going to spend the afternoon at her friend Jesse's house. I didn't doubt it until I called Jesse's number to remind Liz that it was her turn to walk the dog, and Jesse's mom picked up the phone and said, \"I thought she and Jesse were planning t...
[ { "content": "An Apple's Words I am an apple. You can find me growing in many places in the world. I am like my cousins, pears and bananas. I am more round than a pear, and bananas are longer than I. I am delicious , so people all over the world like to eat me. I cost very little money and I help make people ...
[ { "content": "A school was across the street from our home and I would often watch the kids from my window as they played basketball. One day, among the children a girl attracted me. She seemed so small as she muscled her way through the crowd of boys. Running circles around the other kids, she managed to shoot...
[ { "content": "Have you ever run out of coffee or tea? Found no eggs in the fridge? No bread for the sandwich and the nearest shop is too far away? Well, all that can change in the future. If all goes well, the intelligent future kitchen will soon help solve all your problems. In the future, all kitchen units wi...
[ { "content": "Nancy is an English school girl. She studies in a middle school. She has a little brother. His name is John. John is only four. Nancy likes him very much. Today is Sunday. Nancy wants to do her homework. She takes out her pencil-box and opens it. \"Oh, dear! Where's my pen?\" She can't find her pe...
[ { "content": "Walt Disney began to make cartoon movies when he was young. But he didn't have much money and he didn't always have enough to eat. One day a mouse ran near his desk when he worked in his small office. \"Would you like to be my pet? \"Disney asked the mouse. He caught the mouse and kept it as a pet...
[ { "content": "Here's one number to keep in mind during your next cell phone conversation: 50. A new experiment shows that spending 50 minutes with an active phone pressed up to the ear increases activity in the brain. This brain activity probably doesn't make you smarter. When cell phones are on, they emit en...
[ { "content": "Whitney Houston, who died on February 11, 2012 in Beverly Hills, California, is being remembered across the globe as a trailblazer . Among all of Houston's outstanding achievements, including a total of more than 400 career a wards , her most significant achievement was her record-setting string o...
[ { "content": "When I was 10 years old, I tried out for the cheerleading squad. I had taken gymnastics classes for two years to prepare for these tryouts. However, I didn't make the team. It was a heavy blow to me. I cried all night. Kids today won't experience that kind of rejection. They're growing up in \"eve...
[ { "content": "Trying to leave work at the office is proving to be a challenge for many British workers,with research showing that heavy workloads,conflicts and bosses all make an appearance in dreams. Work-related issues are the number one topic featuring in dreams,with colleagues invading shut.eye time more th...
[ { "content": "Nursing at prefix = st1 /BethIsraelHospitalproduces the best patient care possible. If we are to solve the nursing shortage, hospital administration and doctors everywhere would do well to follow Beth Israel's example. At Beth Israel each patient is assigned to primary nurse who visits at length w...
[ { "content": "Many people think heroes need to be handsome, rich, or very smart. But as for me, a hero is a person who always helps others. My hero is Uncle Bill. He is the oldest son of a worker, and he grew up in a poor family with four younger brothers and two little sisters. He was good at neither writing n...
[ { "content": "long ago people made fires from lightning . But they had to keep the fire burning, for they couldn't start it again if there was no lightning. Later, they found out hitting two piece of stone together could make a spark . The spark could fire dry leaves. In this way they could make the fire agai...
[ { "content": "Crowd controls could soon become an important skill for climbers on Mount Everest, as important as physical strength or watching the weather. In a single day last week, nearly 40 people reached the top of the world --- a record. Reports from base camp spoke of queues at dangerous ridges and crowds...
[ { "content": "Hello! I'm Sandy .I'm a Grade 8 students.I study at a secondy school .Now let me tell you about my school life. I get up at 6:15 a.m.Then I have my breakfast at six thirty. I go to school by bus .My home is about five kilometers away.from school.This often takes me 20 minutes.The first school begi...
[ { "content": "Disposing of waste has been a problem since humans started producing it.As more and more people choose to live close together in cities,the waste-disposal problem becomes Increasingly difficult. During the eighteenth century,it was usual for several neighboring towns to get together to select a fa...
[ { "content": "The Count of Monte Cristo ( French: Le Comte de Monte Cristo ) is an adventure novel by French author Alexandre Dumas. Completed in 1844, it is one of the author's most popular works, along with The Three Musketeers. Like many of his novels, it is expanded from plot outlines suggested by his c...
[ { "content": "White was the owner of a private school in a town. Last year, he married one of his classmates.The beautiful woman spent much time in learning nothing during middle school. But she wasn't worried about anything in the future, because her parents were very rich and could provide her with everythi...
[ { "content": "As a funny student, Brian loved watching comedies best and hoped to become a comedy actor one day. When he heard about the talent show to be held at this school, Brian decided to take part in it. He had never acted in public before, and he was very excited. But some students laughed at him. \"...
[ { "content": "We often think of future.We often wonder what the world would be like in a hundred years' time. Think of space, perhaps a permanent station on the moon will have been set up.Perhaps people will be able to visit the moon as tourists.Cheap rockets for space travel will have been developed, permitti...
[ { "content": "According to the United States government, people are classified as homeless if they have no place to stay and no expectation of finding a place for the next thirty days.Although technically accurate, that is an impersonal assessment of an enormous and very human problem. The homeless population r...
[ { "content": "Dear Jenny, How are you? Thanks for your last letter. I like English and Maths, too. I think they're interesting and useful . Our school is over at 3:40 p. m. every day and I can get home at 4 o'clock, but I don't go home at once . On Monday afternoon, I have a violin lesson from 4:00 to 5:00. I l...
[ { "content": "Cars are the most important part of life in the United States. Without a car most people feel that they are poor. And even if a person is poor he doesn't feel really poor when he has a car. Henry Ford was the man who first started making cars in large numbers. He probably doesn't know how much the...
[ { "content": "My House My mother moved a lot when she was growing up on account of Grandpa being in the army. She hated having to adjust to new schools and make new friends. That's why I thought she was joking when she put forward the idea of moving. But she was completely serious. \"For just the two of us,\" m...
[ { "content": "Boxing is a fist fighting sport between two matched combatants wearing padded gloves. A boxer's primary aim is to land as many blows as possible to the head and torso of the opponent, using strength and speed to dominate the contest. One of the oldest sports still practiced, boxing dates back ...
[ { "content": "Hello, My name is Dale. I'm 13 years old. This is a photo of my family. Look! This is my father. His name is Tim Brown. He is 45 years old. This is my mother Alice. She is 43 years old. I have a sister and her name is Gina. She is 11 years old. I look like my mother and Gina looks like my father....
[ { "content": "Once upon a time, two men were walking in the forest. One was thin and tall, and very bad too. The other was fat and short, and very honest. The tall man said to the short man, \"We are good friends. If any beast comes, I'll help you.\" The short man said, \" Of course, we are good friends. We wil...
[ { "content": "Once there lived a lion in the big mountain.He was very big and strong.He often ate the other animals.Every day he went out to look for food.The small animals in the mountain were all afraid of him.Near the mountain there were four bulls .They are friends, and they often worked and played togethe...
[ { "content": "Building a company website is one of the most important parts of creating a successful business. But designing a website can be time consuming and expensive. Web designers are difficult to work with, and even though you're paying them.There are cheaper ways to establish your company online, and Wi...
[ { "content": "Imagine being bald and walking into class at school. You escape to the back row but see other students pointing at you and talking about you. You feel embarrassed. After school, you run home to avoid talking to anyone. Some medical problems cause people to lose their hair. This can be embarrassin...
[ { "content": "Now many people like the game Angry Birds. Here is a piece of good news for them--soon there will be a lot of Angry Birds-themed activity parks around the world. The first two parks opened in Finland last year, and a few other parks are going to open in the UK. However, people still don't know whe...
[ { "content": "Imagine a house that keeps itself warm in the wintertime. Think of the savings in terms of fuel bills and unfriendly emissions. Such houses in fact exist, called \"passive houses\". The concept of these highly energy-efficient buildings took root in the 1990s, before slowly consolidating as a nich...
[ { "content": "I like to get up late, so my ideal school starts at 9: 00 a. m. It finishes at 3: 00 p. m. So we can do lots of sports after school. In my ideal school, there is a big dining hall. We have an hour for lunch. We can listen to music in the hall. We can have maths every day because I think maths is v...
[ { "content": "Digestion is when stomach acid breaks down\n\nChoices:\nA. a pizza\nB. a house\nC. a rock\nD. a car", "role": "user" }, { "content": "A. a pizza", "role": "assistant" } ]
[ { "content": "Whenever we turn on the TV or radio, read the newspapers, surf the Internet, we'll be surrounded by the word \"diet\" everywhere. We have so easily been attracted by the promise of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that...
[ { "content": "John is a licensed barber in State A. The State A barber licensing statute provides that the Barber Licensing Board may revoke a barber license if it finds that a licensee has used his or her business premises for an illegal purpose. John was arrested by federal narcotics enforcement agents on a c...
[ { "content": "Over the years I've been teaching children about a simple but powerful concept -- the ant philosophy .I think everybody should study ants. They have an amazing four-part philosophy, and here is the first part: ants never quit. That's a good philosophy. If they're headed somewhere and you try to s...
[ { "content": "When the one-year anniversary of my mother's passing came around, I found myself in the kitchen preparing some of her favorite dishes. As I poured myself into cooking, some of the deep sadness I was experiencing at this one-year mark moved through me. I loved my mom's turkey soup. I remembered the...
[ { "content": "Read the suggestions for making an English speech. a. Looking at and talking to one person in the audience helps keep you natural, but it feels foolish talking to only one person. Speak to that person as long as 15 seconds and then change another one. b. The audience have a hard time understandi...
[ { "content": "New research shows sheep are clever People often make jokes about how dull sheep are, but new research shows they may be cleverer than we think. Researchers at the University of Cambridge discovered that Welsh mountain sheep have brainpower that equals rodents . Tests found that the sheep can map...
[ { "content": "On a Saturday morning earlier this September, the world got its first look at the Strati. This electric vehicle is unlike any other currently on the road. It rolls on four wheels, but its body and chassis weren't built in a factory. Instead, Strati's designers used a technology called 3-D printin...
[ { "content": "The world is not only hungry, but it is also thirsty for water. This may seem strange to you , since nearly 70% of the earth's surface is covered with water . But about 97% of that is sea water, or salt water. Man can only drink and use the other 3% -- the fresh water from rivers , lakes , underg...
[ { "content": "Which tool should be used to compare the growth of an algal colony growing in a petri dish?\n\nChoices:\nA. a scale\nB. a ruler\nC. a hand lens\nD. a balance scale", "role": "user" }, { "content": "C. a hand lens", "role": "assistant" } ]
[ { "content": "A lion is tired very much and sleeps on the ground one day . A cat runs after a little mouse . The mouse runs around and comes to the lion . The mouse sees the lion and he is very afraid . \" I' m very sorry . Please let me go . I can help you some day . \" The lion sleeps well and feels happy ...
[ { "content": "You hurry into the kitchen,open the refrigerator and suddenly you forget why you open it.\"What am I looking for?\"You ask yourself.\"What am I doing here?\"Don't worry.You are not losing your mind.We have all had this kind of thing.If you think about something very quickly,it goes into your short...
[ { "content": "Too often young people get themselves employed quite by accident, not knowing what lies in the way of opportunity for promotion, happiness and security. As a result, they are employed in doing jobs that afford them little or no satisfaction. Our school leavers face so much competition that they se...
[ { "content": "To wash yourself, you take a bath or a shower. Animals need to keep clean, too. How do animals clean themselves? Cats themselves to keep their fur clean. Have you ever watched a pet cat clean itself? Elephants take baths much as you do. But instead of jumping into the , they walk into a river o...
[ { "content": "The United States does not require business to pay workers who are sick or caring for a new baby. President Obama and some other U.S. lawmakers want to change time-off policies. Supporters say paid leave is the right thing to do. Opponents say it will kill economic growth. In 2014, the United Nati...
[ { "content": "\"I like your smile, but unlike you put your shoes on my face\". A charming way of saying \"Keep off the grass\". But could you figure it out? Or this: \"Wash Clothing Store\" for laundry. They are both typical Chinglish, a combination of English vocabulary and Chinese grammar. Expressions such as...
[ { "content": "Henry hated Wanda, his former wife, for divorcing him and marrying John a short time thereafter. About a month after Wanda married John, Henry secretly entered Wanda and John's rented apartment during their absence by using a master key. Henry placed a microphone behind the nightstand in the bedro...
[ { "content": "China is a land of bicycles.At least it was back in 1992 when I travelled the country.Back then everyone seemed to be riding a bicycle.Millions of them,all black.Cars were rare.Yet since my arrival in Beijing last year,I've found the opposite is true.There were millions of cars.However,people stil...
[ { "content": "Will it matter if you don't have your breakfast? A short time ago, a test was given in the United States. People of different ages, from 12 to 83, were asked to have a test. During the test, these people were given all kinds of breakfasts, and sometimes they got no breakfast at all. Scientists wan...
[ { "content": "Hello! I'm Sally Hand. I'm an English girl. I'm in EEC Middle School. Here's a picture of my room. A bed, a desk and a chair are in it. They are green. A computer is on the desk. Next to the computer is my telephone. It's red. My phone number is 523-6851. I always call my cousin in the evening. He...
[ { "content": "Only two countries in the advanced world provide no guarantee for paid leave from work to care for a newborn child.Last spring one of the two,Australia,gave up the bad distinction by setting up paid family leave starting in 2011.I wasn't surprised when this didn't make the news here in the United ...
[ { "content": "Steve Jobs, Apple's chief executive, made his first public appearance since going on medical leave six weeks ago, taking the stage at a San Francisco media event to introduce the iPad 2, the second generation of the company's tablet computer. Thin but energetic, Mr. Jobs showed off a thinner iPad....
[ { "content": "Sigmund Freud was a world-famous doctor of Vienna . He was also a man full of humour. Once, at his 70th birthday party, a friend asked Freud if he could put his work into several words.\"Well,\"said Freud, \"we take the sick out of their trouble and return them to the common suffering.\" As a devo...
[ { "content": "A person wanting to continue to use a man-made box will\n\nChoices:\nA. throw it in the trash\nB. put it in the garbage\nC. burn it in a fire\nD. find new uses for it", "role": "user" }, { "content": "D. find new uses for it", "role": "assistant" } ]
[ { "content": "Book 1Elixirwritten by Eric Walters Twelve-year-old Roth becomes a friend of Dr. Banting and his assistant, Mr. Best, who are doing research on a cure for diabetes . She finds herself torn between her sympathy for the animals being experimented on and her friendship with Banting and Best. Book 2G...
[ { "content": "How can we see that refracting sunlight causes light to split into different colors?\n\nChoices:\nA. shining a light at a mirror\nB. letting sunlight hit a broken mirror\nC. setting a diamond outside on a bright day\nD. shining a flashlight at broken glass on the floor", "role": "user" }, ...
[ { "content": "There will come a time when you must decide to lead the life someone else has chosen for you... or the life you want. According to legend, when a young boy asked the great Renaissance artist Michelangelo why he was working so hard hitting the block of marble that would eventually become his greate...
[ { "content": "The Bowler family had a very unusual experience this year. It was one of more than 400 families who applied to 1900 house, a reality TV show which took a typical family back a hundred years to see how people lived in the days before the internet, computer games and even electricity. The Bowler fam...
[ { "content": "A sure way to destroy your chances of learning how to write skillfully is to believe that writing is a \"natural gift\" rather than a learned skill. People with such an attitude think that they are the only ones for whom writing is unbearably difficult. They feel that everyone else finds writing e...
[ { "content": "James Dean was not very tall-he was less than average height. He had thick, light brown hair and blue eyes. He was so near-sighted that he could hardly see anything without his glasses. He came to Hollywood when he was eighteen, hoping to get into the movies. At first, he was not successful a...
[ { "content": "Keeping our water pure is by no means an easy task but it is something that must be done. Hong Kong once prided herself on being the \"Fragrant Harbour\". However, these days, it is not certain if Hong Kong's harbour could still be called \"fragrant\". For, like many other places, Hong Kong has no...
[ { "content": "I entered college in China in 1981. Many things seemed to remain the same. For many things are dominated by one thing: the national entrance examination to get into college. In my year, about 4% high school students went to college. Now the number is 22%, as compared to 40% in the US. The signific...
[ { "content": "Four years ago my sweet mom went to be with her Lord.She did it her way. I got the call at work, and 1 headed home quickly.Mom and Dad lived on a small farm that they had owned since I was seven.I hated going there every weekend.There was nothing for a young girl to do but watch the one station on...
[ { "content": "Which of these most closely resembles how clouds come into being?\n\nChoices:\nA. making beer\nB. distilling liquor\nC. driving a car\nD. baking bread", "role": "user" }, { "content": "B. distilling liquor", "role": "assistant" } ]
[ { "content": "Deep into the night, the bus pulled in to a Howard Johnson's restaurant and everybody got off the bus except Vingo. The young people began to wonder about him , trying to imagine his life. One of the girls sat beside him and introduced herself. After a long time, slowly and painfully, he began to ...
[ { "content": "An unpunctual man never does what he has to do at the right time. He is always in a hurry and in the end loses both time and his good name. A lost thing may be found again, but lost time can never be got back. Time is more useful than material things. In fact, time is life itself. An unpunctual ma...
[ { "content": "Rules in the reading room Hello, everyone. Welcome to the school reading room. We hope you have a good time here. Before you go into the reading room, there are some rules you need to keep. 1.The reading room is open from 8:00 a.m. to 5:00 p.m. from Monday to Friday. 2. Don't take your bag into th...
[ { "content": "As I drive about the Sois in rural Thailand I catch little glimpses of things that barely register on the mind as the scenery flies by; strange things, beautiful things, sad things, interesting things. I wish I could hold on to these scenes; explore them in detail. I wish that I had the time to st...
[ { "content": "When you watch TV and play video games you make global warming worse! It may seem hard to believe, but when electricity is made, so are greenhouse gases . This means that every time you use electricity you help make global warming worse! Cars are also making global warming worse. They burn fossil...
[ { "content": "Answer the following questions by using the information taken from a dictionary page. (You may read the questions first.) jaguar: n. a type of large, yellow-colored cat with black markings found in the southwestern region of the U. S. and in Central and South America. jargon: 1. n. speech that doe...
[ { "content": "The world, in painter Chen Xiao's eyes, is as colorful and sweet as ice cream. At the opening of his latest exhibition, Colorful World in the Eyes of Sean Chen, at the National Museum of China recently, the artist told his story. Chen left China for Australia in 1986 to seek artistic freedom, and ...
[ { "content": "Disneyland calls itself the happiest place in the world. In order to keep visitors happy in its locations across the globe, every theme park in the world is changed slightly to satisfy local cultures and tastes. Opened in 1983 and larger than the original California Disneyland, Tokyo Disneyland is...
[ { "content": "EVERY few hundred years, a sleeping giant in southern Italy awakens with a bang, spewing volcanic ash across the countryside. The volcano, called Mount Vesuvius, formed 25,000 years ago. During its most explosive eruptions, the volcano could blanket nearby cities with hot ash, sometimes also buryi...
[ { "content": "We live in a very competitive world. Everybody seems to be competing with someone at some level. Each week we spend hours playing or watching others compete in sporting activities all over the world. We cannot help being impressed by the level of excellence that these people achieve. In sport and ...
[ { "content": "Birds build nests out of things such as\n\nChoices:\nA. fragments from plants\nB. small glass shards\nC. entire tree trunks\nD. several flower buds", "role": "user" }, { "content": "A. fragments from plants", "role": "assistant" } ]
[ { "content": "What do butterfly wings have to do with computer screens? What do birds have to do with high speed trains? These may sound like strange things to put together. But scientists, inventors, and designers are doing just that. They are learning from nature to create new technology. The word biomimicry ...
[ { "content": "Jenny measures the outside temperature as 16 degrees Celsius (°C), 61 degrees Fahrenheit (°F). She observes precipitation falling from the clouds in a solid form. What type of precipitation is Jenny most likely observing?\n\nChoices:\nA. hail\nB. rain\nC. sleet\nD. snow", "role": "user" }, ...
[ { "content": "The OM Man and the Sea ,for which Hemingway was awarded the Nobel Prize for Literature, is one of the most influential novels of the literary treasure of the world. Famously known for his brief and short sentences ,Hemingway created ah interesting and unique style of writing that still appeal to r...
[ { "content": "Do you need useful and interesting books? Here we've got plenty for you. Successful Fishermen Fishing is a healthy hobby. You can enjoy fresh air when you go fishing in the countryside. This book will teach you how to choose fishing places and how to make good fishing rods easily. Many kinds of f...
[ { "content": "Question: Which program is in Guinness World Records as the world's longest running TV quiz show? Answer: \"It's Academic.\" \"It's Academic\" is a Saturday morning program for high school students. The show has been broadcast in the Washington area for fifty years. Secretary of State Hillary Clin...
[ { "content": "Goodreads. com is a website for book lovers everywhere. If you love to read, and if you love social networking, you should check out Goodreads. The website marries social networking and books in such a way as makes your friends' reading progress easy to follow and makes it simpler than ever to fin...
[ { "content": "During the twentieth century there has been a great change in the lives of women. A woman marrying at the end of the nineteenth century would probably have been in her middle twenties, and would be likely to have seven or eight children, of whom four or five lived until they were five years old. B...
[ { "content": "Pasteurization kills\n\nChoices:\nA. mammary glands\nB. illness causing agents\nC. bottles\nD. women", "role": "user" }, { "content": "B. illness causing agents", "role": "assistant" } ]
[ { "content": "Several interchangeable parts are used in the manufacture of automobiles. Some examples of these parts are batteries, windshield wiper blades, spark plugs, and tires. Which of the following is an advantage of interchangeable parts over non-interchangeable parts on automobiles?\n\nChoices:\nA. Inte...
[ { "content": "On a hot summer day, ice-cold watermelons serve up a delicious treat. Sure, the rosy flesh quenches your thirst . But now there are more reasons than ever for people to reach for a slice of watermelon. Meet Dr Alison Edwards. She is a scientist at the Agricultural Research Service. Scientists a...