题目内容

According to Paragraph 2, a small piece of rubber tubing______.

A. can support the ball
B. must fall when the ball is hit
C. will be pushed into the ground
D. will be broken when being contacted

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更多问题

The sentence "most of us ... a second thought to" in the first paragraph explains that the

A. portable
B. inexpensive
C. unimpressive
D. easy to catch

钟表的配置、校对、检查、修理及时钟校准办法，由（）规定。

A. 国务院
B. 铁道部
C. 铁路局
D. 站段

【C20】

A. adaptive
B. careful
C. similar
D. captive

【C17】

A. compensate
B. help
C. comfort
D. improve