题目内容

Some of the studies show positive results, (whereas) others do not.

A. 因此
B. 但是
C. 大概
D. 而且

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His achievements have (exceeded) expectations.

A. 激励
B. 发起
C. 折断
D. 超过

The company makes several kinds of automatic, (flexible), and static bollards(护栏).

A. 奇迹般的
B. 易弯曲的
C. 可应用的
D. 破坏性的

Don't act in (haste) or be hot-headed.

A. 急速
B. 开端
C. 闲暇
D. 犹豫

The cassettes(磁带) were of (inferior) quality.

A. 优等的
B. 炎热的
C. 劣等的
D. 诚挚的