赞题库-背景图

多项选择题

建筑高度超过32m的二类高层建筑的( )部位，应设置机械排烟设施。

A.无自然通风，且长度超过20m的内走道
B.不具备自然排烟条件的防烟楼梯间
C.不具备自然排烟的高度为12m的中庭
D.有自然通风，但长度超过40m的内走道

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单项选择题前肢由上向下，第二个关节是（） A、腕关节 B、肘关节 C、肩关节 D、指关节

单项选择题Which of the following is true of an option contract?()

A、If the offeree chooses not to buy the property, then money paid in consideration must be returned
B、If money is paid as consideration, then that is not applied to the sale price
C、Death or incompetency of either party terminates an option contract
D、The offer cannot be revoked during the option period