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【单选题】
下图所示结构有多少根零杆【图片】
A.
5 根
B.
6根
C.
7根
D.
8根
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参考答案:
举一反三
【简答题】listen to the following five short recording from 13-17 which talk about the use of technology in recruitment. For each recording, decide what recommendation the speaker makes concerning technology in...
【单选题】"Cars are not as safe as they used to be. They're more fuel-efficient, more environmentally sound, and better at surviving a 5 m.p.h. collision. But none of that adds up to safety." Does the speaker o...
A.
Yes
B.
No
【判断题】51钢中的奥氏体转变成马氏体时会产生很大的相变应力,是由于马氏体的比容大于奥氏体。( )
A.
正确
B.
错误
【单选题】Please Listen to the following TED talk and answer the questions followed. (2分17秒-3分08秒) The speaker worked with other scientists to analyze earth climate observations. In 1981,they published an artic...
A.
observed warming of 0.4 degrees Celsius in the prior century was consistent with the greenhouse effect of increasing CO2
B.
That Earth would likely warm in the 1980's, and warming would exceed the noise level of random weather by the end of the century
C.
T he 21st century would see shifting climate zones, creation of drought-prone regions in North America and Asia, erosion of ice sheets, rising sea levels and opening of the fabled Northwest Passage
D.
All of these impacts have since either happened or are now well under way
【单选题】What else did the speaker learn in addition to the things he learned from history and Spanish classes?
A.
He learned how to read assigned textbooks.
B.
H e learned h ow to get meaning from texts.
C.
He learned how to go over every single word in reading.
【单选题】下列诸过程可应用公式 进行计算的是( )。[北京科技大学2011研]
A.
实际气体等压可逆冷却
B.
理想气体绝热可逆膨胀
C.
恒容搅拌某液体以升高温度
D.
量热弹中的燃烧过程
【简答题】听下面一段材料,回答第1至4题。 1. What's the speaker mainly talking about? [     ] A. His school life. B. His family. C. His brother. 2. How does the speaker like his brother? [     ] A. Naughty. B. Honest. C. Depe...
【判断题】在进行采购作业流程中,同一主管可对同一采购案件做多次的签核。
A.
正确
B.
错误
【单选题】两流体的出口温度分别为20°C和80°C,则管壁温度约为( )。
A.
20℃
B.
80℃
C.
50℃
D.
100℃
【判断题】变速器包括变速器传动机构和变速操纵机构两大部分。
A.
正确
B.
错误
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