[化學] 為什麼是這樣
CH3
5 /
C
/ \ 1
4 C C一CH3
\ //
C一C 2
3
應該看得懂吧 呵呵
請問為什麼順序是這樣?
為什麼不可以2的地方改成1 1的地方改成2
不是取代機加起來比較小的嗎?這樣雙箭的開始也是1不是嗎?
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