习题 5-69 指出下列哪些化合物的紫外吸收波长最长,并按顺序排列:-|||-(i) (H)_(2)=CHC(H)_(2)CH=CHOC(H)_(3) (H)_(2)=CHCH=CHOC(H)_(3) CH3CH2CH 2CH2CH2 OCH3-|||-0 0 0-|||-(iii) square ll-|||-CH3