- B
- A
- C
- D
（配伍题）
- (1).（）杀菌作用强的是
- (2).（）起泡、去污作用好的是
- (3).（）有起昙现象的是
- (4).（）在酸性介质中呈阳离子型表面活性剂的性质
A阴离子型表面活性剂
B阳离子表面活性剂
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
略
相似试题
（配伍题）
(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（）
（简答题）
请使用位操作指令，实现下列逻辑操作： P1.5=ACC.2∧P2.7∨ACC.1∧P2.0
（填空题）
The full title of the U.K. is the United Kingdom of （）and （）
（单选题）
You need to perform these tasks: 1. Create and assign a MANAGER role to Blake and Clark 2. Grant CREATE TABLE and CREATE VIEW privileges to Blake and Clark Which set of SQL statements achieves the desired results? （）
（单选题）
You need to perform these tasks: 1. Create and assign a MANAGER role to Blake and Clark 2. Grant CREATE TABLE and CREATE VIEW privileges to Blake and Clark Which set of SQL statements achieves the desired results?（）
（填空题）
蒜具有较强的杀菌作用、降血压作用和（）作用。
（单选题）
Fair and(1) competition in government procurement around the world is good business and good public policy. Competitive pricing, product(2)and performanceimprovements result from competitive practices and help ensure that government authoritiesget the best (3)for the public they serve.
（单选题）
Fair and(1) competition in government procurement around the world is good business and good public policy. Competitive pricing, product(2)and performanceimprovements result from competitive practices and help ensure that government authoritiesget the best (3)for the public they serve.
（单选题）
Fair and(1) competition in government procurement around the world is good business and good public policy. Competitive pricing, product(2)and performanceimprovements result from competitive practices and help ensure that government authoritiesget the best (3)for the public they serve.
