【单选题】【消耗次数：1】
在C程序中所用的变量使用前
①
可以不定义
②
先定义后使用
③
随时定义随时用
④
其他
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相关题目
【简答题】
C语言规定，变量必须[填空1]定义，[填空2]使用。
【单选题】
如果一个函数位于C程序中定义的第一个函数，在该函数体内说明语句后的复合语句中定义了一个变量，则该变量( )。
①
为全局变量，在本程序文件范围内有效
②
为局部变量，只在该函数内有效
③
为局部变量，只在该复合语句中有效
④
定义无效，为非法变量
随机题目
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”The four rubber tyre of the automobile move America through work and play.
①
正确
②
错误
【多选题】
It is our_____________ to protect the people.
①
date
②
duty
③
responsibility
④
responsible
【多选题】
_____________ , computers can do many of the things we do, but faster and better.
①
In time
②
In fact
③
Actually
④
As a matter of fact
【多选题】
Its the_____________ coat that was stolen from me.
①
small
②
same
③
identical
④
identity
【多选题】
We_____________ from the facts.
①
drew a conclusion
②
reached a conclusion
③
came to a conclusion
④
started a conclusion
【多选题】
_____________ , he had to stay at home to look after her.
①
His mother being ill
②
His mother ill
③
Although his mother was ill
④
As his mother was ill
【单选题】
I must____________ you that if you do this again you will be punished.
①
waste
②
worry
③
warn
④
weep
【单选题】
Of course she ___________ what youve done.
①
is pround of
②
finds a way
③
takes off
④
fights for
【单选题】
Ted: I’m very sorry for stepping on your foot.Chark: __________ It’s very crowded on the bus.
①
Don’t worry.
②
Thats all right.
③
Im fine.
④
Take it easy.