1. (1).（）杀菌作用强的是
2. (2).（）起泡、去污作用好的是
3. (3).（）有起昙现象的是
4. (4).（）在酸性介质中呈阳离子型表面活性剂的性质

(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（）

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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

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The full title of the U.K. is the United Kingdom of （）and （）

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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? （）

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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?（）

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蒜具有较强的杀菌作用、降血压作用和（）作用。

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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.

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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.

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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.

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