题目内容

汽车下坡减速行驶时,其行驶阻力中( )为负值。

A. 惯性阻力
B. 空气阻力
C. 坡度阻力
D. 滚动阻力

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The disc, digitally_____ in the studio, sounded fantastic at the party that night.

A. recorded
B. recording
C. to be recorded
D. having recorded

With a lot of difficult problems ______, the manager felt worried all the time.

A. to settle
B. settling
C. settled
D. being settled

All the thing______,his proposal is of greater value than yours.

A. considered
B. considering
C. to consider
D. consider

______ as the “First Lady of Speech”, Dr Lillian Glass is recognized as one of the world’s leading experts on communication skills.

A. Knowing
B. Having known
C. Known
D. To be known

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