Structures of some common polymers are given. Which one is not correctly presented?
- ANeoprene - $[ - CH_2 - C(Cl) = CH - CH_2 - CH_2 - ]_n$
- BTerylene - $[ - OC - C_6H_4 - COOCH_2 - CH_2 - O - ]_n$
- CNylon $6,6$ - $[ - NH(CH_2)_6NHCO(CH_2)_4CO - ]_n$
- DTeflon - $[ - CF_2 - CF_2 - ]_n$
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