单项选择题

In our highly technological ,society, the number of jobs for unskilled workers is

A．shrinking
B．obscuring
C．altering
D．constraining
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单项选择题
After several nuclear disasters, a _________ has raged over the safety of nuclear energy.
A．quarrel
B．suspicion
C．verdict
D．controversy
单项选择题
The airborne particulates tend to wind up in the Northeast airborne here means.
A．produced by air
B．emerged in the air
C．floating
D．polluting
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