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单选题
采用过滤聚合分离的油水分离器,聚合材料主要有()。 Ⅰ、砂;Ⅱ、波纹管;、‘Ⅲ、微孔塑料;Ⅳ、合成纤维;Ⅴ、活性炭;Ⅵ、焦炭。
A
Ⅰ+Ⅱ+Ⅲ
B
Ⅲ+Ⅴ+Ⅵ
C
Ⅰ+Ⅳ+Ⅴ
D
Ⅰ+Ⅲ+Ⅳ
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