单项选择题

Researchers discovered that plants infected with a virus give off a gas that ______ disease resistance in neighboring plants.

A. contracts
B. activates
C. maintains
D. prescribes
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单项选择题
I didn't say anything like that at all. You are purposely ______ my ideas to prove your point.
A. revising
B. contradicting
C. distorting
D. distracting
单项选择题
France's ______ of nuclear testing in the South Pacific last month triggered political debates and mass demonstrations.
A. assumption
B. consumption
C. presumption
D. resumption
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