某演讲大厅,500Hz混响时间设计值为0.9s,则1000Hz混响时间设计值应取()

题型:单项选择题

问题:

某演讲大厅,500Hz混响时间设计值为0.9s,则1000Hz混响时间设计值应取()

A.1.3s

B.1.1s

C.0.9s

D.0.7s

考点:土木建筑工程建筑声学建筑声学题库
题型:单项选择题
Do you think of your parents? “Yes, of course,” you may answer, “I buy a present for my mother on       . And I give my father a present on Father’s Day,      . Then what about the other days of a year? Always       to think of your parents, not just on some important days. I have a friend who       alone, because her parents live another city. One day I went to see her. We had a nice chat. Then she wanted to make a       . She dialed (拨号) the number, but then she put the phone       . After about ten seconds, she dialed the number again. “Hi, mom…” Later I asked, “Why did you dial the number       ?” She smiled, “My parents are old. They can’t get close to the telephone       . I always do so when I call them. I just want to give them       time to answer the call.” My friend is a good girl. She is always        her parents. You also want to be a good child, right? So why not learn from her?
小题1:
A.Father’s DayB.Mother’s DayC.Teachers’ Day D.Children’s Day
小题2:
A.as wellB.alsoC.eitherD.yet
小题3:
A.prepareB.forgetC.decideD.remember
小题4:
A.liveB.livesC.lived D.living
小题5:
A.faceB.cardC.callD.cake
小题6:
A.upB.offC.downD.on
小题7:
A.onceB.twiceC.several timesD.many times
小题8:
A.lonelyB.slowlyC.quietlyD.quickly
小题9:
A.lessB.littleC.enoughD.a lot
小题10:
A.thinking aboutB.laughing atC.picking upD.looking for
题型:单项选择题

下列动物中,属于两栖纲的是(  )

A.甲鱼

B.鳄

C.青蛙

D.鲸

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糖酵解的关键酶是

A.丙酮酸脱氢酶

B.乳酸脱氢酶

C.磷酸甘油酸脱氢酶

D.磷酸果糖激酶-1

E.3-磷酸甘油醛脱氢酶

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事件确定性越大,信息熵()。

A、不变

B、越小

C、越大

D、不能确定

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工程项目设计过程质量管理中的设计策划通常以( )的形式编制。

A.设计方案

B.设计文件

C.设计计划

D.设计流程

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