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问题 单项选择题

板与支承墙或支承梁的连接可采用在支座上坐浆10~20mm厚，且板在砖墙上的支承长度不应小于（）。

A.60mm

B.80mm

C.120mm

D.100mm

答案

参考答案：D

单项选择题

What happened to him after the World Tennis Tournament

A．He became famous.

B．He joined the airlines industry.

C．He had habitual headaches.

D．He became a hair stylist.
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单项选择题

消费者剩余是( )。

A．消费过剩的商品

B．消费者得到的总效用

C．消费者买商品所得到的总效用减去支出的货币的总效用

D．支出的货币的总效用
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