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【单选题】
仰角的取值范围是【】°。
A.
0-90
B.
-90-0
C.
0-180
D.
-180-0
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【单选题】The text outlines a number of channels for dealing with sexual harassment. All of the following are mentioned as possible responses except
A.
Ask the harasser directly to stop.
B.
Write a personal letter to the harasser.
C.
Ask a trusted friend to intervene.
D.
Start telling your co-workers some nasty gossip about the offender.
【简答题】p.p1%20%7Bmargin%3A%200.0px%200.0px%200.0px%200.0px%3B%20font%3A%2012.0px%20Helvetica%7D The text below comes from a ninethcentury bestseller, Sarah Stickney Ellis's The Women of England: Their So...
【单选题】北京2008年奥运会火炬“祥云”使用的燃料是丙烷(C 3 H 8 ),其燃烧的化学方程式为: C 3 H 8 + xO 2 yCO 2 +4H 2 O.其中x、y分别是 [     ]
A.
5 3
B.
7 3
C.
1 3
D.
1 5
【判断题】网络营销与网络推广的评估方式是一样的
A.
正确
B.
错误
【简答题】PASSAGE 4. How to Make Attractive and Effective PowerPoint Presentations A) Microsoft PowerPoint has dramatically changed the way in which academic and business presentations are made. This article ou...
【多选题】导游服务的经济性主要表现
A.
直接创收
B.
扩大客源
C.
促销商品
D.
促进经济交流
E.
促进文化交流
【简答题】已知天然气的容积成分为:yCO2=1.9%,yCmOn=3.9%(按C3H6计算),yO2=0.4%,yCO=6.3%,yH2=54.4%,yCH4=31.5%,yN2=1.6%。假定含湿量d=0.002kg/m3(干燃气),则湿燃气的平均密度为( )。 A.0.285kg/m3 B.0.347kg/m3 C.0.493kg/m3 D.0.527kg/m3 A. B. C. D.
【单选题】已知干燃气的容积成分为yCO2=1.9 %,yCmHm=3.9%(按C3H6计算),yO2=0.4%,yCO=6.3%,yH254.4%,YCH4=31.5%,yN2=1.6%,假定含湿量d=0.002 kg/m3(干燃气),则湿燃气中CO2的容积成分为( )。
A.
1.528%
B.
1.637%
C.
1.865 %
D.
1.902 %
【单选题】北京2008年奥运会火炬“祥云”使用的燃料是丙烷(C 3 H 8 ),其燃烧的化学方程式为:C 3 H 8 +xO 2 点燃 . yCO 2 +4H 2 O,其中x、y分别是(  )
A.
5;3
B.
7;3
C.
1;3
D.
1;5
【单选题】Which of the following is the benefit of the TED pattern introduced for note-taking?
A.
It takes a short amount of time to finish.
B.
It shows the structure of the relationship between ideas.
C.
It fulfills the requirement of the Cornell Note-taking system.
D.
It outlines all the important information from a speech or text.
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