@谱 67 CsH, 68 CH, CH,CH, CEN 69 CsH9, CF3, CH3 CH=CHC=O, CH2=C(CH3)c=0 70 CsH1o 71c5H1,C3HC=0 0 72 C2HSC+H, C3H,CHNH,, (CH3)2N=C=O, cH CrH5NHCHCH3, and isomers