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【判断题】
创造的起点是指某一发明活动的直接出发点。A.
正确
B.
错误
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举一反三
【单选题】We did hold a meeting yesterday, but you______, so we did not inform. you.
A.
did not need attending
B.
needn't have attended
C.
did not need to attend
D.
needn't attend
【简答题】怎样利用积分区域和被积函数的对称性来简化二重积分的计算？
【单选题】He wondered ______ .
A.
what will be his wife's reaction
B.
what would his wife's reaction be
C.
how would be his wife's reaction
D.
what his wife's reaction would be
【单选题】The writer was sorry he made rude remarks because _____ (a)his wife reminded him that he had bought a terrible tie (b)he has a lot of ties (c) his wife has a lot of hats (d)his wife got annoyed with h...
A.
his wife reminded him that he had bought a terrible tie
B.
he has a lot of ties
C.
his wife has a lot of hats
D.
his wife got annoyed with him
【简答题】看图，补全对话。 例: — Did you go swimming? — Yes, I did. 1. — Did you go skating? — __________________________. 2. — Did you ___________________? — __________________________.
【简答题】能否利用对称性来简化第一类曲面积分？
【简答题】When you travel(旅游) in Hong Kong, you must be careful of the traffic(交通) rules, because the traffic keeps to the left and it’s different from that of the interior(内地) of China. Before crossing the str...
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