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17.造纸废水首先进入“格栅十调节池”预处理系统的根本目的是A.筛留有用纸浆,节约造纸原料B.加强废水散热,促进废水渗漏C.减轻对后续各工艺设备的破坏D.缩小对区域水体污染的扩散范围
25.What does Frasca mean by his words in paragraph 4?A.Green programs should be independent of marketing.B.It is difficult to raise consumers' environmental awareness.C.Running a sustainable salon meets market demands.D.There is room for improvement for Sustainable Salons.