第12题: [简答题]Obviously, there would be no point in investing(投入) in a computer if you had to check all its answers, but people should also rely on their own internal computers and check the machine when they have the feeling that something has gone wrong. ( Passage 2 ) 参考答案:显然,如果所有的答案都需要核对的话,买电脑就没有意义了,但人们也应该依赖自己的“内部电脑”,并在感觉出问题的时候检查一下机器。
第30题: [多项选择]关于磺酸化物类阴离子表面活性剂下列说法正确的是 A. 为脂肪族磺酸化物、烷基芳基磺酸化物和烷基萘磺酸化物 B. 通式为R-so3-M+ C. 广泛应用的洗涤剂十二烷基苯磺酸钠属于这类表面活性剂 D. 牛磺胆酸钠不属于这类表面活性剂 E. 与肥皂类表面活性剂所指相同 参考答案:A,B,C