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问题 选择题

(0.14m4n3-0.8m3n3)÷0.2m2n2等于(   )

A．0.7m2n2-0.4mn

B．0.28m2n-0.16n

C．0.7m2n-4mn

D．0.7m2n-4n

答案

答案：C

填空题

除增值税专用发票以外的其他发票，按照国务院税务主管部门的规定，分别由（）国家税务局、地方税务局指定企业印制。
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选择题

Don't worry. The hard work that you do now ________ later in life.[ ]

A. will be repaid

B. was being repaid

C. has been repaid

D. was repaid
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