题目内容
红外基频峰少于基本振动数的原因是
2021-10-18
A.非红外活性的振动
B.红外线光子能量较小
C.能量相同的振动吸收发生简并
D.分子振动能级跃迁时所需能量较大
E.仪器性能的限制
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