题目内容

国与国之间的竞争归根到底是()的竞争。

A. 社会制度
B. 人才
C. 科技发展
D. 综合国力

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夜间在没有照明的路面上会车，需距对方来车()m处互闭远光灯，改用近光灯。

A. 50
B. 100
C. 150
D. 200

No light ____ in the house for the past two evenings, one of the neighbors broke in and found the old lady in her chair.

A. being visible
B. to be visible
C. has been visible
D. having been visible

According to a recent poll, 61 percent of American high school students have admitted to ____ on exams at least once

A. cheating
B. cheat
C. have cheated
D. being cheated

A survey was carried out on the default rate of the assembly line, ____ were surprising

A. as results
B. which the results
C. of whose the results
D. the results of which