单项选择题

Cigarette smoking is a major health ______ and may result in your death.

A．hazard
B．fault
C．mistake
D．shortcoming
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单项选择题
The new policy has ______ a large amount of investment for industry and business in this city.
A．acquainted
B．adhered
C．activated
D．asserted
单项选择题
You can rely on Mr. Smith to carry out this mission for his judgment is always ______.
A．unquestionable
B．healthy
C．sound
D．subtle
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