Images C6H5 CH3

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C6h5 ch3. Ch2 Ch c6h5 полимер. C6h5ch2ch3. C6h5ch2ch3 t pt. C6h5-c(ch3)=ch2.
Ch2 Ch c6h5 полимер. C6h5ch2ch3. C6h5ch2ch3 t pt. C6h5-c(ch3)=ch2.

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