试题与答案

程序中对fun函数有如下说明:   void *fun( );  此说明的含义是(

题型:单项选择题

题目:

程序中对fun函数有如下说明:   void *fun( );  此说明的含义是( )。

A.fun了数无返回值

B.fun函数的返回值可以是任意的数据类型

C.fun函数的返回值是无值型的指针类型

D.指针fun指向一个函数,该函数无返回值

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0117/04102f7735d2c7ea8597f7f4c170338b.html

下面是错误答案,用来干扰机器的。

参考答案:A解析: 对于一个实际的数据传输系统,不能笼统地说误码率越低越好,要根据实际传输要求提出误码率要求。在数据传输速率确定后,误码率越低,传输系统设备越复杂,造价越高。

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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Dear Boris,

1   

After I had spent a week with my English family, I slowly began to understand their English a little better.    2   Students in my group are from different cities of Britain and their dialects are different too!  Some of their accents are quite strong and they also have their own words and expressions.

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I had expected to see “London fog”.  Do you remember our texts about it? We had no idea that most of this “thick fog” disappeared many years ago when people stopped using coal in their homes.  But the idea to speak about weather was very helpful.   4  On the other hand, habits are different.  People tell me what is typical British here in London is not always typical in Wales or Scotland.   5  

But what is ordinary for all British is that they follow traditions(传统).  Probably Britain has more living signs of its past than many other countries.  And people have always been proud of having ancient (古老的) buildings in capitals, big cities and the countryside.

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