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【简答题】
指出下列分子中哪些是极性分子,哪些是非极性分子? NO 2 、 CHCl 3 、 NCl 3 、 SO 3 、 COCl 2 、 BCl 3 。
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举一反三
【单选题】Amy is not studying Spanish at present. What does she lack?
A.
Time.
B.
Energy.
C.
Money.
D.
Interest.
【单选题】What does not belong to the studying method taken by scientists?
A.
They bury measuring device 3 kilometers under the volcano floor.
B.
They observe carefully the change of the mountain's position.
C.
They also observe activities of the earth when it changes.
D.
Devices are placed within 20 kilometers of Mount St.Helens.
【单选题】II型呼吸衰竭病人给氧原则是
A.
低流量、高浓度持续给氧
B.
低流量、高浓度间断给氧
C.
低流量、低浓度持续给氧
D.
低流量、低浓度间断给氧
E.
高流量、高浓度持续给氧
【单选题】—What does Ann think of studying English? —She thinks the best way to learn more English is to learn by ______aloud. [     ]
A.
listening
B.
writing
C.
reading
D.
using
【单选题】Methods of studying vary what works 【21】______ for some students doesn't work at all for others. The only thing you can do is experiment 【22】______ you find a system that does work for you. But two th...
A.
good
B.
easily
C.
sufficiently
D.
well
【单选题】视频(数字电影)素材的常用格式为:
A.
AVI、MPEG、MP4
B.
TXT、WPS、DOC
C.
SWF、GIF、AVI
D.
WAV、MIDI、MP3
【单选题】—______? —He doesn't mind it. [     ]
A.
What does Evan think of the weather
B.
What does Evan like about the weather
C.
How is Evan going
D.
How does Evan think the weather is
【判断题】如图利用等效电感法判断同名端时,电流表仍为直流电流表。
A.
正确
B.
错误
【单选题】以下哪点不属于官僚体制陷入困境的原因?()
A.
公共部门追求公共利益最大化,但公共利益大多抽象模糊,不易准确具体地表达
B.
官僚制活动缺乏明确的成本收益计算
C.
官僚制在提供公共物品和服务时没有类似于企业的“利润”诱因机制来激励其为提高效率而努力
D.
官僚制因掌握大量的社会有效资源,所以能够更好地为社会提供公共服务
【单选题】What does the author mean by studying cross-cultural differences?
A.
Studying the differences between individuals within one ethnic group.
B.
Making a comparison between one ethnic group and another in terms of culture.
C.
Making cultural generalizations about one culture based on the standards of the other.
D.
Comparing and categorizing different cultures.
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