单项选择题
A.0.85B.0.86C.0.87D.0.88
A.0.943B.0.944C.0.945D.0.946
A.0.4B.0.5C.0.6D.0.7
A.780~2600nmB.750~2500nmC.780~2800nmD.780~2500nm
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