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【判断题】
15漏磁场的产生与缺陷和工件的磁导率差异有关,如果铝制工件表面存在钢的夹杂物,由于两者磁导率的差异,在外加磁场的作用下也会产生漏磁场。A.
正确
B.
错误
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【简答题】水提法提取蛋白质时,怎样除去共存的多糖、无机盐和苷类等杂质?
【简答题】1) That kingdom was small but rich. Everybody there lived happily. a. That kingdom was small but rich, _____ everybody there lived happily. b. In that kingdom, _______ was small but rich, everybody ...
【单选题】She lived happily. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
S+V+O
B.
S+LV+P
C.
S+V
【单选题】In a harmonious society,we'd better prevent pollution _______ happily. [ ]
A.
to live
B.
lived
C.
living
D.
beinglived
【单选题】With all the things she needed _____, she went home happily. [ ]
A.
to buy
B.
to be bought
C.
buying
D.
bought
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