题目内容

In formal communication, be sure to avoid ambiguous language. Clear language prevents confusion.

A. wordy.
B. ineffective.
C. unclear.

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Being raised with conflicting values can be a detriment to boys’ and girls’ relationships with each other. In contrast, shared values can be a benefit.

A. improvement.
B. harm.
C. relationship.

While houses and antiques often increase in value, most things, such as cars and TVs, depreciate.

A. remain useful.
B. lose value.
C. break.

Reliable scientific theories are based not upon careless work, but rather upon meticulous research and experimentation.

A. hasty.
B. expensive.
C. careful.

In the early days of automobile manufacturing, stringent laws controlled motorists’ speed. In contrast, the laws designed to protect consumers from faulty products were extremely weak.

A. strict.
B. not effective.
C. informal.