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【单选题】
两个化合物(1) 邻氰基苯酚，(2)苯甲酰胺，如用红外光谱鉴别,主要依据的谱带是A.
(1) 式在～ 3300cm -1有吸收而 (2) 式没有
B.
(1) 式和 (2) 式在～3300 cm -1吸收, 后者为双峰
C.
(1) 式在～2200 cm-1有吸收
D.
(1) 式和 (2) 式在～2200 cm-1 吸收
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D.
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