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【单选题】
铺无菌巾下垂应超过手术床边A.
30cm
B.
20cm
C.
40cm
D.
60cm
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反馈参考答案：
举一反三
【单选题】Campaigns began in the early 1980s, when people___the negative effects of CO2 emission.
A.
realize
B.
realized
C.
have realized
D.
had realized
【单选题】A Sunshade for the Planet Even with the best will in the world, reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures ...
A.
strong measures have been taken by the government to prevent global warming.
B.
to reduce carbon emissions is an impossible mission.
C.
despite the difficulty, scientists have some options to prevent global warming.
D.
actions suggested by scientists will never be realized.
【单选题】A Sunshade for the Planet Even with the best will in the world, reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures ...
A.
strong measures have been taken by the government to prevent global warming.
B.
to reduce carbon emissions is all impossible mission.
C.
despite the difficulty, scientists have some options to prevent global warming.
D.
actions suggested by scientists will never be realized.
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