通风系统根据系统是否配置动力装置,可分为()。 A.机械通风 B.自然通风 C.人工

题型:多项选择题

问题:

通风系统根据系统是否配置动力装置,可分为()。

A.机械通风

B.自然通风

C.人工通风

D.散热通风

考点:监理工程师见证取样员见证取样员题库
题型:多项选择题
Everyone in our class loves sports. Every morning       we get up, we do morning exercises. After the second class, we       exercise again. We only have       classes twice a week, but we do physical training(体育锻炼) at five every      . The most popular       is basketball. The       enjoy playing it and many of the girls like it, too. Another popular sport is soccer and in every class there       a lot of students who like soccer very much. Volleyball is often played when the weather is      . We have school teams in basketball,       and volleyball. Our teams often       friendship matches(友谊赛)with teams from other schools. When there is a match,       of us are very excited to go to watch it.
Besides(除…之外) ball games, some of us like track and field events(田径运动),       we often practice running and others. Every term(学期) we have       in these events and once a year we have a       meeting.
Sports help us to keep       and happy. Do you like sports?
小题1:
A.ifB.whenC.beforeD.after
小题2:
A.doB.doingC.didD.does
小题3:
A.EnglishB.ChineseC.P.E.D.music
小题4:
A.morningB.afternoonC.eveningD.night
小题5:
A.sportB.factC.classD.thing
小题6:
A.teachersB.boysC.studentsD.people
小题7:
A.areB.isC.wereD.was
小题8:
A.coldB.rainyC.fineD.hot
小题9:
A.baseballB.tennisC.soccerD.ping-pong
小题10:
A.seeB.haveC.look atD.watch
小题11:
A.muchB.fewC.littleD.many
小题12:
A.becauseB.andC.orD.but
小题13:
A.testsB.partiesC.situationsD.fashion
小题14:
A.runningB.swimming C.sportsD.tennis
小题15:
A.thirstyB.healthyC.tiredD.thin
题型:多项选择题

2007年10月24日18时05分,“嫦娥一号”在西昌卫星发射中心由长征3号火箭发射升空.”嫦娥一号”起飞时相对于火箭是______的,它的动能______(选填“增大”、“减小”、或“不变”)

题型:多项选择题

路堤与路堑过渡段在连接处为硬质岩石路堑时在路堑一侧顺原地面纵向开挖台阶台阶高度()右并应在路堤一侧设臵过渡段。

A.0.3m

B.0.6m

C.0.8m

题型:多项选择题

可以起豉励和抑制正、反两方面作用的经济刺激措施是()

A、财政援助

B、低息贷款

C、财政补贴

D、税收

题型:多项选择题

在生产过程中,如温度、压力控制,当()要求维持在某一值时,就要采用定值控制系统。

A、给定量

B、输入量

C、扰动量

D、被控量

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