题目内容

The TTS run will demonstrate ()the car can take curves as fast as a human driver—without driving off a cliff.

A. as
B. that
C. when
D. whether

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Consequently, more than 100 cities in the United States still have levels of carbon monoxide, particulate matter, and ozone that()legally established limits.

A. succeed
B. proceed
C. exceed
D. excess

Your speech class will give you an opportunity to gain confidence and make your nervousness work for you()against you.

A. more than
B. apart from
C. rather than
D. instead

They do this by doing well-informed about their subjects, being honest in what they say, by using sound evidence, and by employing()reasoning.

A. valley
B. value
C. vary
D. valid

未受或者尽量少受人类活动,特别是人为污染影响的土壤化学元素的自然含量称为()。

A. 土壤组成
B. 土壤成分
C. 土壤环境背景值
D. 土壤环境容量

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