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【判断题】
( )电弧冷焊灰铸铁时,应增加焊接热输入,以减小焊接应力,防止裂纹,使半熔化区的白口铸铁组织变薄,有利于加工。A.
正确
B.
错误
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举一反三
【单选题】听力原文：M: I've forgotten my passbook, but I'd like to make a deposit to my savings account if I may. W: No problem, just bring this receipt with you the next time you come in, along with your passbook, ...
A.
At the bank.
B.
At the customs office.
C.
At the library.
D.
At the post office.
【简答题】物理地址(PA)是 位无符号二进制数,是CPU访问存储器的实际地址。每个存储单元对应 个物理地址。8086存储空间的物理地址范围是:00000H~ 。
【单选题】听力原文：M: I've forgotten my passbook. I'd like to make a deposit to my savings account if I may. W: No problem. Just bring this receipt with you the next time you come in along with your passbook, and w...
A.
At a reception desk.
B.
At a store.
C.
In a bank.
D.
In a hotel.
【简答题】I remember______(pay)for the job, but I have forgotten the exact amount．
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