What a table! I've never seen such a thi

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问题选择题

What a table! I've never seen such a thing before. It is____ it is long. [ ]

A. half not as wide as

B. wide not as half as

C. not half as wide as

D. as wide as not half

答案

答案：C

填空题

在○里填“>”、“<”或“=”。

47-9○42-5 88-50○41-3

63-7○51-8 46-7○53-20

79-6○78-30 70-9○84-10

单项选择题

拉伸时在什么时候停止拉伸放松应力（）

A、当链条拉紧时

B、当出现一定的变形量时

C、当拉到标准尺寸时