单选题：The expression "cream-of-the-crop" in the first sentence of

题目内容：

The expression "cream-of-the-crop" in the first sentence of paragraph 4 most probably means__________ A．creative
B．high-quality
C．delicious
D．crisp

参考答案：【答案仅供学习，请勿对照自行用药等】

答案解析：

Richard Seed's announcement received__________

Richard Seed's announcement received__________A．the nucleus of a cell B．cloned h

分类：理工类题型：单选题

It can safely be inferred from the article that__________A．civilized man is No.

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The promised wage increase is being held back while it is examined by the gover

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Water was used to try to break up the smog.A．Right B．Wrong C．Not mentioned

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第53题应选：A．runners B．exercises C．patients D．cases

分类：理工类题型：单选题