单项选择题

下列不是计算重量的计重办法的是( )。

A.公量
B．质量
C．理论重量
D．法定重量

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多项选择题

从事煤炭生产与煤矿建设的企业（以下统称煤矿企业）必须遵守国家有关安全生产的（）、标准和技术规范。

A.法律
B.法规
C.规章
D.规程
E.制度

单项选择题

听力原文：W: Can you help me to decide what I should buy for my brother's birthday?
M: Remember you took a picture of him at his last birthday party? Why not buy him a frame. so that he can fix the picture in it?
What did the woman do last year for her brother's birthday?
A．Took a photo of him.
B．Bought him a picture.
C．Held a birthday party.

A.Took
B.
B．Bought
C.
C．Held
D.