下列物质，属非离子型表面活性剂的是（）
A.有机胺皂
B.卵磷脂
C.吐温80
D.月桂醇硫酸钠
E.洁尔灭
参考答案：C
Do you know _____? [ ]
A. when did he start hiccupping
B. how far from school does she lire
C. which movies will win awards next year
D. whether has the No.15 bus arrived
