- B
- A
- C
- D
- (1).杀菌作用强的是()
- (2).起表面活性作用的是阴离子的表面活性剂是()
- (3).在水中不解离、毒性最小的表面活性剂是()
- (4).分子结构中同时具有正、负电荷基团的表面活性剂是()
A阴离子型表面活性剂
B阳离子型表面活性剂
C非离子型表面活性剂
D两性离子型表面活性剂
正确答案
答案解析
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