单项选择题

The present universal fear has been the result of a forward surge in our knowledge and ______ of certain dangerous factors in the physical world.

A．perception
B．supplement
C．synthesis
D．manipulation
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单项选择题
Environmentalists keep quiet because concern over the radioactive gaseous elements in houses would ______ attention from the campaign against nuclear power.
A．convert
B．divert
C．invert
D．reverse
单项选择题
He was inexperienced and lack of preparation, so his first experiment was ______ to fail.
A．expected
B．destined
C．predicted
D．considered
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