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【简答题】
卤族元素包括 、 、 、 和砹五种元素
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举一反三
【判断题】In the text How I Got Smart, at last, the author was no longer reading to win the girl’s admiration , b ut h e continued the pursuit for knowledge and got smart.
A.
正确
B.
错误
【简答题】The two parties may agree to discharge the contract by _________, or _________ it with a new contract.
【简答题】为什么在管道外表面包覆保温材料?
【简答题】请简述:什么是外模式、模式和内模式。
【单选题】We may infer from the passage that
A.
the two parties in the U. S. disagree with each other on boosting science training.
B.
the general immigration reform. is designed to attract people with high degrees.
C.
graduates with lower degrees are less needed than graduates with doctoral degrees.
D.
job hunters with doctoral degrees exceed demands in the market.
【简答题】在一根外径为100mm的热力管道外拟包覆两层绝热材料,一种材料的导热系数为0.06W/(mK),另一种为0.12W/(mK),两种材料的厚度都取为75mm。试比较把导热系数小的材料紧贴管壁,及把导热系数大的材料紧贴管壁这两种方法对保温效果的影响,这种影响对于平壁的情形是否存在?假设在两种做法中,绝热层内、外表面的总温差保持不变。
【简答题】Replace the underlined words with the correct form of the words and expressions in the box. You may need to make other changes. alliance characterize clash economy governor liberal lib...
【单选题】—Ready to give up guessing, Sandy? —No, no. Hold on! I think I _______ at the answer now.
A.
arrive
B.
have arrived
C.
arrived
D.
am arriving
【判断题】If either of the two parties is not satisfied with the result of arbitration, the two parties may further solve the dispute through litigation.
A.
正确
B.
错误
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