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常见的拉电子基团和吸电子基团有哪些?
参考文献: [1]wug.bwg.ghe ss.t;chr she.c.zhvng.b.sell-nacieation of d-porm 无■ isuee peypmpyitnt lelse copet on thin fins.hoemalcabs 2021,54.11404-141 比斯 白编 [2]weog.b:zhoe.z:ile s:zhang y:cheo,i:shan,c;zheig.d.racr
参考文献: [1]wug.bwg.ghe ss.t;chr she.c.zhvng.b.sell-nacieation of d-porm 无■ isuee peypmpyitnt lelse copet on thin fins.hoemalcabs 2021,54.11404-141 比斯 白编 [2]weog.b:zhoe.z:ile s:zhang y:cheo,i:shan,c;zheig.d.racr