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[主观题]
中波紫外线波长为()A.180~280NM B.280~320NM C.320~400NM D.400~760NM E.760~1800NM
中波紫外线波长为()
A.180~280NM
B.280~320NM
C.320~400NM
D.400~760NM
E.760~1800NM
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中波紫外线波长为()
A.180~280NM
B.280~320NM
C.320~400NM
D.400~760NM
E.760~1800NM
短波紫外线波长为()
A.180~280NM
B.280~320NM
C.320~400NM
D.400~760NM
E.760~1800NM
长波紫外线波长为()
A.180~280NM
B.280~320NM
C.320~400NM
D.400~760NM
E.760~1800NM
可引起日晒伤的紫外线波长为()
A.180~280NM
B.280~320NM
C.320~400NM
D.400~760NM
E.760~1800NM
红外线波长为()
A.180~280NM
B.280~320NM
C.320~400NM
D.400~760NM
E.760~1800NM
A.505~1205kHz
B.565~1205kHz
C.535~1605kHz
D.595~1605kHz