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【判断题】
将金粉和混合加热至熔融，再冷却至固态，它们已成为一相。A.
正确
B.
错误
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【简答题】Passage 12 How time flies! More than two years ____(pass) since I entered the school. As a Senior Three student, it won’t take long before I graduate. High school ____(regard) as the golden time in a ...
【单选题】What does Carl think about taking part in the Olympic Games?
A.
He has decided that it is time for him to leave.
B.
He has lost interest in the Games.
C.
He thinks he is too old for the Games.
D.
He will take part in one more Olympic Games.
【单选题】We'd better take umbrellas—I'm sure it____when we arrive in London; it's always wet there at this time of year．
A.
will rain
B.
is raining
C.
will be raining
D.
would rain
【简答题】When I was a child I had violin lessons for six or seven years. Music gave me a lot of pleasures 【M1】 ______ and I sometimes used to dream of being a professional musician. But as time went I realized...
【简答题】带传动不能保证精确的传动比，其原因是。
【简答题】带传动不能保证精确的传动比,其原因是 。
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