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【单选题】
下面有关法兰分类,描述错误的是A.
按法兰应用场合分为容器法兰和管法兰
B.
容器标准法兰分为甲型平焊法兰、焊法兰和长颈对焊法兰三种法兰
C.
长颈对焊法兰属于整体法兰
D.
焊法兰属于整体法兰
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皮皮学刷刷变学霸
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【简答题】两台变压器并联运行时,要求一次侧、二次侧电压 ,变比误差不允许超过± %。
【简答题】两台变压器并联运行时,要求一次侧、二次侧电压 ,变压比误差不允许超过 。
【简答题】In the United States, teaching is very important. If teachers do not teach well, students complain. If many students do not understand, people think that the teacher does not do a good job. The teache...
【单选题】Teachers complain most about students:
A.
not answering the question given
B.
not writing enough
C.
not referencing properly
【简答题】费用（成本）类账户结构与资产类账户结构相同，收入类账户结构与权益类账户结构相同。（ ）
【简答题】两台变压器并联运行时，要求一次侧、二次侧电压（），变压比误差不允许超过（）
【单选题】Teachers complain that children______these tests without being able to write a decent essay, solve a multi-step math problem or construct a framework.
A.
look through
B.
carry through
C.
sail through
D.
put through
【简答题】Match the new words with their English explanations.
【单选题】Don’t complain ________ your teachers________ doing too much homework, because they want you to be the best.
A.
to; to
B.
to; about
C.
about; to
D.
about; about
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