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【单选题】
关于网络文化中的色情、暴力文化等，下列说法正确的是（） ①是落后的文化 ②是腐朽文化 ③应该通过科学文化教育予以改造 ④应该坚决抵制，依法取缔A.
①③
B.
②④
C.
①④
D.
②③
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