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【单选题】
哪一种卤化银不应用于医用X线胶片A.
溴化银
B.
氯化银
C.
碘化银
D.
氟化银
E.
溴化银+碘化银
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【单选题】Britain almost more than any other country in the world most seriously faces the problem of building upwards, that is to say, of accommodating a considerable proportion of its population in high block...
A.
English people like most people in other countries, dislike living in flats
B.
people in most countries of the world today are not opposed to living in flats
C.
people in Britain are forced to move into high blocks of flats
D.
modem flats still fail to provide the necessary facilities for living
【简答题】量程为10μL的微量进样器,每一小格为( )μL。
【单选题】People in Britain are living longer and are 【56】,【57】 more and more money is being spent on consumer goods,【58】 the latest statistics. But while people 【59】appear to be healthier and wealthier, an ana...
A.
looked after
B.
cared for
C.
better off
D.
out of control
【简答题】链球菌引起猩红热的主要毒性物质是_________。
【单选题】Fish and chips ______ getting more and more expensive in many places of Britain.
A.
are
B.
are to
C.
is
D.
is to
【单选题】用三爪卡盘夹持轴类零件,车削加工内孔出现锥度,其原因可能是( )。
A.
A 夹紧力太大，工件变形
B.
2951 2 B 刀具已经磨损 0
C.
C 工件没有找正
D.
D 切削用量不当
【简答题】引起猩红热的主要毒性物质是 。
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