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【简答题】
桥式整流电容滤波电路中,已知 ,空载时其输出电压 = V。
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【单选题】Man: My mother says that she will take us to the National Park this weekend, and the Fragrant Mountain for picnic after the exam. Woman: That's too good to be true. I'll be delighted if she does not g...
A.
The mother usually takes her child for sightseeing after a test.
B.
The child is glad to be awarded a tour if he does well in an exam.
C.
The mother often asks her child to work on something other than the school assignment.
D.
There will be a lot of fun after the exam.
【单选题】She was usually very kind so that her sudden ________ greatly surprised us.
A.
heartiness
B.
unhappiness
C.
harshness
D.
uprightness
【简答题】Sarah left school at eigh, went to college and then worked at a computer company. Four years later, she got a new job as a manager in British Airways. This is what she told us about her job: “My o...
【简答题】P17 2(3)
【多选题】Except the literal meaning(字面意义), what evidence do we usually use to interpret what an American means when he/she greets us by saying "How are you?".
A.
tone
B.
face expression
C.
the setting
D.
your knowledge of Western culture
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