单项选择题

Many people who live along the coast make a living()fishing industry.

A.at
B.in
C.on
D.by

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单项选择题
People()better access to health care than they used to,and they’re living longer as result.

A.will have
B.have
C.had
D.had had

单项选择题
行政决策在整个行政管理中处于()地位。

A.领导
B.决定
C.核心
D.支配

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