单项选择题

Many of his colleagues eventually agreed that Einstein’s theory was tenable（）.

A. tenuous
B. warrantable
C. redundant
D. tolerable

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单项选择题

Humanists argue that human history is marked by a continuous conflict between scientific and technological ingenuity and the demands of the spirit（）.

A. noted by
B. conformed with
C. certified by
D. characterized by

单项选择题

Machines that use hydraulic pressure including elevators, dentist chairs, and automobile brakes.()

A. exclude
B. excluding
C. include
D. are included

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