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3580我国油脂的溶剂萃取法采用的溶剂为()。A.轻汽油B.苯C.多环芳烃类物质D.甲苯E.乙醇5609
我国油脂的溶剂萃取法采用的溶剂为()。 A.轻汽油 B.苯 C.多环芳烃类物质 D.甲苯 E.乙醇 请帮忙给出正确答案和分析,谢谢!
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6412简述奶的消毒方法。9339
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8666蔬菜、水果中有害化学物质的污染包括()。A.农药B.工业废水C.硝酸盐与亚硝酸盐D.肠道致病菌E.寄31
6412简述奶的消毒方法。9339
6161常用于评价油脂酸败的卫生学指标有()。A.酸价B.农药C.过氧化值D.羰基价E.有害金属7028
8131Paragraoh 4 查看材料A.Making friends with new acquainta5267
1497In short, I am going to live there myself.A.To be frankB.In a wordC.That is to sayD.In o9770
3119The flight eventually got away six hours later.A.nicelyB.apparentlyC.finallyD.firstly1194
8033Paragraph 3 查看材料A.Making friends with new acquainta2066
5682食用油脂酸败的主要原因是()。A.自动氧化B.微生物酶分解C.金属离子作用D.油脂水分多E.动植物3046
3459There is a growing gap between the rich and the poor.A.confrontationB.gulfC.tensionD.conf4388
3871ff no one objects, Mr. Ben will be the next chairman.A.disagreesB.approvesC.rejectsD.refu2965
5299Jim has made up his mind not to go to the meeting.A.agreedB.decidedC.promisedD.wanted3480
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