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问题 单项选择题

在基本SQL语言中,不能实现的是【 】。

A．定义视图

B．定义基本表

C．定义索引

D．定义用户界面

答案

参考答案：D

解析：SQL语言中可以通过数据定义语言定义基本表索引和视图,而不可以定义用户界面,用户界面在通过相应的设计工具进行设计。

问答题 简答题

实行收支两条线的总原则是什么？
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补全对话，情景问答
补全对话。
   

A. No, nothing.
B. Does it hurt?
C. We can't do that until the morning, though.
D. Just take off your jacket and shirt,
E. And do you feel anything when I do this?

  
     Malc went to the Casualiy Department of the hospital. There he was examined by a doctor.
DOCTOR: Right. __1__ And lie down on that bed over there.That's right. Now, just hold up
                  your right arm, will you? __2__ 
MALC : No.
DOCTOR: And this?
MALC : Yes...a bit...ouch !
DOCTOR: __3__ 
MALC: Yes. That hurts quite a lot.
DOCTOR: And you don't feel any pain anywhere else? In your legs, for example?
MALC: __4__ 
DOCTOR: Well, it's probably nothing serious. But I think we'd better have that shoulder X-rayed. 
                 __5__ So it would be better if you stayed in hospital for the night...
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