40.在紅外線光譜圖中,一般常用的橫軸標示單位為何?
(A)波長, cm
(B)波數, cm-1
(C)頻率, Hz
(D)穿透度, %
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統計: A(0), B(4), C(0), D(0), E(0) #2229984
統計: A(0), B(4), C(0), D(0), E(0) #2229984