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Ch4 c2h2 h2. C2h2 c2h2br2. C2h2 br. C2h2 h2 c2h4.
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D u c
C version
Char c
C удельная теплота
2c c
D c l m
K y c
5 5 s 5 c
Функциональная c
C o n s t
Ch4 c2h2 h2. C2h2 c2h2br2. C2h2 br. C2h2 h2 c2h4. 