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【单选题】
空间几何基本元素的位置关系有几大类?A.
3大类
B.
4大类
C.
5大类
D.
6大类
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反馈参考答案：
举一反三
【单选题】When would Sarah want to hand in her assignment?
A.
Tomorrow.
B.
After the weekend.
C.
Next Monday.
D.
A week after the deadline.
【单选题】When Sarah and I ______ on an article for the school newspaper, we found it difficult to work together.
A.
compiled
B.
gathered
C.
collaborated
D.
collected
【单选题】--- Shall I phone the hotel for information? --- There is no need. Sarah said that she would _______ for the weekend.
A.
put us through
B.
put us up
C.
put us out
D.
put us down
【单选题】When would Sarah like to sit down with James?( )
A.
Today
B.
Some time next week
C.
Any time between today and the end of Friday
D.
This weekend
【简答题】正弦交流电的数学表达式为i=ImSinwt,其中Im为 。
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