【单选题】关于正槽式溢洪道,下列说法错误的是( )
【简答题】In the morning, she discu_ new plans with her colleagues.
【单选题】What will happen when Westerners start a business negotiation?
A.
They will get into a discussion based on mutual understanding.
B.
They will first listen to the other side's proposals.
C.
They will set up an immediate confrontational situation.
D.
They will try to build up a harmonious situation.
【简答题】助燃剂( )|空气中含量最多的气体( )|可燃性全麻药( )|临床上应用的蒸气浓度无可燃性的气体是( )|空气中含量低且有阻燃作用( )A. NB. N0C. 乙醚D. 恩氟烷E. CO
【多选题】What are the changes in the Japanese attitude to work and life?
A.
Businessmen often discuss business at nightclubs, where they eat and drink and have a good time.
B.
People can talk about business while doing some sports such as golf.
D.
They think work is not necessary.
【单选题】关于正槽式溢洪道,下列说法错误的是( )
【单选题】下列有关氧气的一些说法有错误的是( )
A.
氧气占空气体积的21%,在生命活动中起非常重要的作用
C.
氧气的化学性质很活泼,在常温下能与所有物质发生化学反应
【多选题】下列防火防爆措施中,采用隔绝空气、破坏燃烧爆炸助燃条件的是()。
A.
加强通风,降低可燃气体或蒸气、粉尘在空间的浓度