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问题 单项选择题

“征免”栏应填（）。

A．三资企业

B．一般征税

C．照章

D．全免

答案

参考答案：D

选择题
Not until he left his home _____ to know how important the family was for him.
A. did he begin
B. had he begun
C. he began
D. he had begun
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单项选择题

静脉全麻药物须经过多少半衰期方可认为基本排除（）

A.1～2个

B.2～3个

C.4～5个

D.5～6个

E.10个以上
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