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【测试前instruction】
You are taking a spatial ability test. This test consists of 30 questions about cross-sections. A cross-section is the 2D shape that results when a cutting plane intersects an object.
There are many examples of cross-sections in everyday life. For example, when you slice an apple from top to bottom, the resulting cut surface is a cross-section of the apple.
The picture "SBSolidTest空间想象_示例1.png" shows an apple with some worms inside. Note that the cross section on the right shows both the apple and the shapes and locations of the sliced worms inside the apple.
In this multiple choice test, you will be asked to identify the cross sections of three types of figures as shown in the picture "SBSolidTest空间想象_示例2.png".
Here are some important things to remember:
1. All figures are solid (not hollow) objects.
2. The objects are about 6-8 inches tall. Imagine that they are on the table in front of you.
3. Attached figures are "glued together" at their edges.
4. Nested objects consist of one object inside another. In the nested object above, the cylinder extends all the way through the cube. If you sliced this figure, you would see the cylinder inside the cube.
The cutting planes, shown in grey, will have different orientations, as shown in the picture "SBSolidTest空间想象_示例3.png".
You will see three types of cutting planes: horizontal, vertical, and oblique.
For each type of cutting plane, try to imagine the cross section that would result if you faced the cutting plane head-on, as if you were looking at your reflection in a mirror, as shown in the picture "SBSolidTest空间想象_示例4.png".
You should also assume that the objects are 6-8 inches tall, and that they are sitting on the desk in front of you. In the example below, the cutting plane would produce the cross section on the right, as shown in the picture "SBSolidTest空间想象_示例5.png".
Now you need to do a sample question shown in the picture "SBSolidTest空间想象_示例6.png".
Select from among the four answers (A, B, C, or D) given in the bottom line of the picture the cross-section that you would see when the grey cutting plane slices the object.
Imagine that you are facing the cutting plane head-on, as if you were looking in a mirror. Make your choice based on the shapes of the possible answers, not their sizes.
Please answer.
SBSolidTest空间想象_示例1.png
SBSolidTest空间想象_示例2.png
SBSolidTest空间想象_示例3.png
SBSolidTest空间想象_示例4.png
SBSolidTest空间想象_示例5.png
SBSolidTest空间想象_示例6.png
【等待回复后,提供答案并开始正式测试】
Answers A, B, and D are wrong. Only C looks like the cross-section that you would see when the grey cutting plane slices the object. Remember that each question has only one correct answer. Next, we will start 30 formal tests.
This is Question {i}. Please output the result in pure text format as: question number,answer. For example: 1,B. Please answer.
SBSolidTest空间想象_i.png
【正式测试】
This is Question {i}. Please output the result in pure text format as: question number,answer. For example: 1,B. Please answer.
SBSolidTest空间想象_i.png