单项选择题

Nature has__________ engineers for a long time, for things like lotus effect, to solve some engineering problems.

A．promoted
B．sparked
C．evoked
D．inspired
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单项选择题
We all __________ our tone when speaking to people in authority.
A．notify
B．glorify
C．clarify
D．modify
单项选择题
As our plane __________ to the height of 10,000 feet, we felt the breathing difficulty instantly.
A．descended
B．ascended
C．transcended
D．dropped
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