单项选择题
专间内从业人员离开专间时,可以不脱专间专用工作服
A.对
B.错
专间内从业人员离开专间时,可以不脱专间专用工作服
A.对
B.错
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单项选择题
Print two ____________ on A4 paper. It's the file named "Final Contact".
Print two ____________ on A4 paper. It's the file named "Final Contact".
A.file
B.copy
C.copies
D.portions