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【单选题】
某痕迹吸收短波紫外线,其载体反射短波紫外线,而红外线能穿透痕迹及其承受体。要将痕迹拍摄拍摄下来,应采用( )。
A.
红外反射摄影
B.
红外荧光摄影
C.
紫外反射摄影
D.
紫外荧光摄影
参考答案：
参考解析：
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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