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【判断题】
在 Powerpoint2010中可以对插入的视频进行编辑。A.
正确
B.
错误
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【简答题】Listen again and complete the answers to the following questions. 1. How important is the Rhine to Western Europe? It is most important waterway . 2. What happened to the Rhine from the 1950s to the 1...
【判断题】The most dangerous spies are often those working for super powers like the U.S. and Russia.
A.
正确
B.
错误
【简答题】The belief that new technologies are causing the death of work is the idea that never goes away. Despite evidence to the contrary, we still view technological change today as being more rapid and dram...
【简答题】秘书事务工作的“三办”是指（ ）。
【简答题】fatality,s upervisors, scaffold, counterproductive, contractor, take place, site safety, rigger, are dedicated to, crane, Construction safety is a global issue in that it is a concern wherever constru...
【简答题】(14 分 ) 单质硼有无定形和晶体两种 , 参考下列数据 : 金刚石 晶体硅 晶体硼 熔点 / K >3 550 1 410 2 573 沸点 /K 4 827 2 628 2 823 摩氏硬度 10 6.5 9.5 (1) 晶体硼的晶体类型属于 __________ 。 (2) 已知晶体硼的基本结构单元是由硼原子组成的正二十面体 ( 如图所示部分 ), 其中有二十个等边三角形的面和一定数目的顶...
【单选题】The Marijuana Tax Act of 1937 rendered marijuana illegal and in 1941 it was deleted from the U.S. Pharmacopoeia , an official compendium of drugs,
A.
( ■ ) In addition the Controlled Substances Act ( CSA) of 1970 classified marijuana as one of the most dangerous drugs and banned to be legally cultivated in the United States.
B.
( ■ ) Drugs which have a high potential for abuse is classified as Schedule l drugs and cannot be used with medical purposes.
C.
( ■ ) Marijuana, heroin, opiates and hallucinogens belong here.
D.
( ■ )
【简答题】根据句意及首字母的提示,补全单词 1. One of the most erous sports in the world is mountain c_________. 2. There were no man-made s_________ as big as the Great Wall. 3. The train was traveling at an ordinary s____...
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