试题与答案

如图有一动滑轮提升重物,要求在图中标明支点O,画出F1F2的力臂L1L2.

题型:问答题

题目:

如图有一动滑轮提升重物,要求在图中标明支点O,画出F1F2的力臂L1L2

答案:

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题型:补全对话,情景问答
从Ⅱ栏中找出与Ⅰ栏各句相对应的答语。
                     Ⅰ
( ) 1. Do they like French ?
( ) 2. Are those your pens?
( ) 3. How is your friend?
(     ) 4. Here you are?
( ) 5. Is the basketball under the chair?
(     ) 6. Let's play football.
( ) 7. How do you spell "find"?
( ) 8. Is there a pen or a book in the schoolbag?
(     ) 9. Where is the desk?
(     ) 10. Is your schoolbag small or big?
       Ⅱ
A. Yes, it is.
B. Good idea.
C. Thank you.
D. F-I-N-D.
E. She is fine, thank you.
F. There is a book.
G. It's small.
H. No, they aren't.
I. Yes, they do.
J. In the room.
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