若x-y-2=0,2y²+y-4=0,则x/y-y=（）.

该企业上述业务共应缴纳土地增值税（）万元。

A．306．75
B．397．50
C．378.72
D．307.5

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Peter won’t go with Julia because （）.

A．he's very busy
B．the traffic is busy
C．he has already heard it

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