第22题: [单项选择]"Forget football" in Paragraph 1 suggests that football has been ______. A. the fiercest competition at high schools B. thought to have iii impact on students C. competing with commercials on campus D. brought into disrepute by Coke and Pepsi 参考答案:A 答案解析:由the fiercest competition is between Coke and Pepsi over exclusive…可知第一句提到的足球是用来与两大公司之间的竞争做类比。所以表明足球
第31题: [单项选择]由于乳剂因分散相和连续相比重不同,造成上浮或下沉的现象是() A. 乳析 B. 絮凝 C. 破裂 D. 酸败 E. 转相 参考答案:A 答案解析:乳剂属热力学不稳定的非均匀相分散体系,乳剂常发生下列变化:絮凝(乳剂中分散相的乳滴发生可逆聚集现象称为絮凝)、转相(某些条件变化而改变乳剂类型称为转相)、合并与破裂(乳剂中乳滴周围有乳化膜存在,但乳化