问答题

x>0
Column A Column B
x + 1 x2
A．if the quantity in Column A is greater
B．if the quantity in Column B is greater
C．if the two quantity are equal
D．if the relationship cannot be determined from the information given

A.if
B.if
C.if
D.if

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单项选择题

出口许可证管理,是一种行之有效的经济调节手段。( )

A.正确
B．错误

D．simulated

A.transformed
B．imitated
C．innovated