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【判断题】
在“力多边形法”中,力的顺序不影响最后的结果。A.
正确
B.
错误
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【简答题】Unit 8 Lesson 3题目.docx
【简答题】若圆柱体的体积是2 a 3 +3 a 2 ，底面半径为a，请你试着求出这个圆柱体的高。
【简答题】圆柱体的高扩大3倍，体积就扩大3倍．______．
【简答题】Translate these sentences into Chinese and pay attention to the phrases. (1) Now we can only stay at home so as not to be infected with the virus.(so as to... 以便,为的是 ......) (2) I think back to the pr...
【多选题】When we try to illustrate an idea, using examples can make our points clearer and easier to understand. Remember that the examples we use should be relevant and to the point. We can raise examples in ...
A.
Let me give you an example...
B.
Here's an example of...
C.
A good case in point is...
D.
To illustrate the idea, we can look at the example of ...
E.
As is shown in the example of...
【简答题】(1) Now we can only stay at home so as not to be infected with the virus.(so as to... 以便,为的是 ......) (2) I think back to the previous Spring Festival. (think back 回想 ) (3) Try to go out less, in order...
【简答题】如图所示，A、B两个圆柱体叠放在一起置于水平桌面上，已知两圆柱体A、B底面积比为2：3，若圆柱体A对圆柱体B的压强与圆柱体B对桌面的压强相等，则这两个圆柱体的质量比为 。
【简答题】把3块长2十厘米，宽8厘米，高1十厘米的长方体铁块，在车床上削成3地最大的圆柱体，你认为这地最大圆柱体的体积是多少？削去部分的体积是多少？
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