有機化学、酢酸エチルはch3cooch2ch3かch3cooc2h5か両方正解か

有機化学、酢酸エチルはch3cooch2ch3かch3cooc2h5か両方正解か
https://viper.2ch.sc/test/read.cgi/news4vip/1625144884/

last-modified: 2021-07-02 01:52:04