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【单选题】
患者，男，岁，诊断为大叶性肺炎，住呼吸内科病房。护士对其病室进行紫外线空气消毒。33.紫外线杀菌最强的波长范围是
A.
210～230nm
B.
250～270nm
C.
310～330nm
D.
350～370nm
E.
410～450nm
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参考答案：
举一反三
【单选题】Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts (67) our protective blanket on (68) . Light gets through, ...
A.
from
B.
than
C.
as
D.
away
相关题目：
【单选题】Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts (67) our protective blanket on (68) . Light gets through, ...
A.
from
B.
than
C.
as
D.
away
参考解析：
题目纠错 0
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