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【单选题】
Civil servants should be as helpful as possible, and ______ information only in the interests of national security.A.
deprive
B.
withhold
C.
violate
D.
affirm
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皮皮学刷刷变学霸
举一反三
【单选题】People can’t___the fact that China is still a developing country.
A.
ignore
B.
overlook
C.
neglect
D.
pay no attention to
【简答题】简述带传动的优点? 2 .链传动的主要失效形式有哪些?
【简答题】The maximum resolution, or resolving power (the ability to distinguish two points) of a compound light microscope is ______μm; maximum magnification is__________.
【单选题】After resolving the trouble of main power supply, main switch of emergency generator should____, if power supply is refreshed.
A.
be switched off by the duty officer
B.
be switched on by the duty officer
C.
be switched off automatically
D.
be switched on automatically
【单选题】After resolving the trouble of main power supply, main switch of emergency generator should ________, if the power supply is refreshed.
A.
be switched off by the duty officer
B.
be switched on by the duty officer
C.
be switched off automatically
D.
be switched on automatically
【简答题】Because the early microscopes lacked high resolving power, many species of ____________ were unknown.
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