单选题：It can safely be inferred from the article that__________

题目分类：理工类
题目类型：单选题
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题目内容：

It can safely be inferred from the article that__________ A．civilized man is No. 1 enemy of nature
B．altering the balance of nature will definitely lead to man's extinction from the planet
C．modem technology sometimes makes people's life worse rather than better
D．most deserts and senti-deserts are due to the cutting down of forests

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The promised wage increase is being held back while it is e

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

分类：理工类题型：单选题

Water was used to try to break up the smog.

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

分类：理工类题型：单选题

第53题应选：

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

分类：理工类题型：单选题

In the experiment, one end of the string was attached to____

In the experiment, one end of the string was attached to__________.A．the icebox

分类：理工类题型：单选题

Paragraph 3 __________ ~

Paragraph 3 __________ ~A．What exactly is science. B．How do you find an explanat

分类：理工类题型：单选题