《建筑设计防火规范》规定,通风、空气调节系统的风管在穿越通风空气调节机房的房间隔墙和楼板处应设置()。
A.防火阀
B.防水阀
C.防烟阀
参考答案:A
小题1:Our beautiful classroom ________(clean) every day.
小题2:In order to improve Mary’s self-confidence,her teacher asked her to look at ________(she)in a mirror every morning and say “I’m the best. ”
小题3:She was very ________(happy) to fail the final exam.
小题4:Here are _________(tomato) noodles.They smell good!
小题5:Trust him!He has no difficulty _______(work) out the problem.
小题6:Ceaners clean the street every day.Their work is _________(true) common.
小题7:More and more people all over thd country are worried about food _______(safe).
小题8:Windy does ________(badly) is P.E. than me.
土地价格是( )在经济上的一种实现形式。
A.土地价值 B.土地所有权 C.土地使用权 D.土地抵押权