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问题 选择题

下列对测量工具的选择最合适的是[ ]

A．测量跳远的成绩选用分度值是1mm的刻度尺

B．测量1000粒稻种的质量选用托盘天平

C．测量百米的时间选用普通机械手表

D．测量体重时选用学生实验中常见的弹簧测力计

答案

答案：B

填空题

用所给词的正确形式填空。

(in the box, found, an, it's, be, you, how, excuse, please, call, key )

1. Is that ______ watch?

2. What ______ your telephone number?

3. Is that your book in the lost and ______ case?

4. Please ______ Gina at 236-5698.

5. —What's this? 

   —______ a pencil case.

6. I lost a set of ______.

7. He has (有) ______ English book.

8. ______ do you spell "pen"?

9. ______ me! Is this your watch?

10. What's your name, ______?

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单项选择题

Floors aboard ship are（）.

A.frames to which the tank top and bottom shell are fastened on a double bottomed ship

B.transverse members of the ships frame which support the decks

C.longitudinal beams in the extreme bottom of a ship from which the ships ribs start

D.longitudinal angle bars fastened to a surface for strength
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