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【判断题】
右焊法适合焊接厚度较大,熔点较高的工件,但是,这种方法掌握较难。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】I letters since then, but I haven't finished them yet. [ ]
A.
have written
B.
have been writing
C.
wrote
D.
has been writing
【单选题】24 March Dear Julie, I'm sorry I haven't written for a while, but I've been busy at work and have spent almost all my spare time looking for a flat(公寓). I saw a really nice place this morning--a third...
A.
He goes out with friends.
B.
He takes Japanese lessons.
C.
He looks for a place to live in.
【单选题】I haven't finished my composition. I _____ for two hours and a half. [ ]
A.
have written it
B.
have been writing it
C.
wrote it
D.
am writing it
【单选题】听力原文：W: I haven't written to my parents for almost three months. They must be very angry with me. M: I don't think it is that serious. What will the woman probably do?
A.
She will go home.
B.
She will telephone home.
C.
She will write home.
D.
She won't do anything.
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