单词拼写。根据句意完成句子，在空格里写出恰当形式的英语单词，每空一词。

1. If you do the same thing over and over again, you begin to do it _________ (automatic).

2. The Impressionist paintings were __________ (有争议的) at the time they were created.

3. The teacher gave __________ (具体的) examples to show the meaning of these abstract words.

4. A teacher should not show __________ (prefer) for any one of his pupils and should treat them fairly.

5. _________ (civil) there will be destroyed if war breaks out.

存储过程是存储在数据库中的代码，具有很多优点。下列陈述中不属于存储过程优点的是（）。

A．可通过预编译机制提高数据操作的性能

B．可方便地按用户视图表达数据

C．可减少客户端和服务器端的网络流量

D．可实现一定的安全控制