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在太阳能电池外电路接上负载后,负载中便有电流流过,该电流称为太阳能电池的 。
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【单选题】______ my great disappointment, I discovered that the watch was broken.
A.
To
B.
For
C.
On
D.
With
【简答题】听力原文：Man: I discovered at an early age that I only did well at something if I enjoyed doing it. I didn't like maths at school so I never got good results, but sport was different. So, now I work for E...
【判断题】Watch the video. Then decide whether the following statements are true (T)or false (F). ( ) 1. People in Mongolia get together for the Naadam.
A.
正确
B.
错误
【简答题】[选做题]在4-1和4-2两题中选答一题. 4-1.补充完成“按权展开式”: ____ 答案: 4-2. 某班从甲、乙、丙三名候选人中选举一名学生代表,每张选票上只能选一人或不选.全班50名同学都参加了投票,得票情况如图,则学生乙的得票数是____.
【简答题】When it is discovered that a substance harms women's reproductive health，women of childbearing age are usually kept from jobs that might expose them to it．
【单选题】—Did you have a good May Day holiday? —________. We enjoyed ourselves in the Summer Palace. [ ]
A.
I'm not sure
B.
I hope so
C.
Of course
D.
I'm afraid not
【简答题】12 Passage Three Questions 23 to 25 are based on the passage you have just heard. 23.A)They help us see the important values of a culture. B)They guide us in handing human relationship. C)They help us...
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