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【简答题】
电致发光过程中的电-光能量转换效率主要取决于 , , 和 效率的乘积。
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举一反三
【简答题】阅读文章第二段,完成下列任务: 1) How can Chinese government win the confidence of the outside world? 2) Why does Chinese government believe there will be a strong rebound after the epidemic is controlled?
【简答题】阅读文章第十-十二段,完成下列任务: 1) What can Chinese government do to support SMEs? 2) Why will this epidemic influence the world more than SARS did? 3) Translate “China’s economy plays a greater role and is highl...
【单选题】—Must I get up before seven o’clock tomorrow? —_______. It is Sunday tomorrow, you can have a good rest.
A.
Yes, you must
B.
No, you don’t have
C.
No, you needn’t
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