●In C language, the increment and decrement    (72)  can only be applied to variables, so an expression like x=(i+j)++ is illegal.

试卷相关题目

• 1● In C language,    (70)  variables have to be defined outside function, this    (71)  actual storage for it.

  A.internal

  B.output

  C.export

  D.external

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• 2● When a string constant is written in C program, the compiler creates  (69)  of characters containing the characters of the string, and terminating it with “”.

  A.a group

  B.an array

  C.a set

  D.a series

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• 3● In C program，all variables must be  (67)  before use, usually at the beginning of the function before any  (68)  statements。

  A.stated

  B.instructed

  C.illustrated

  D.declared

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• 4● In C language, one method of communicating data between functions is by  (66)  。

  A.arguments

  B.variables

  C.messages

  D.constants

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• 5●  通过电话线连接因特网，可以使用的链路层协议有SLIP和  (61)  ，这种情况下给主机  (62)  一个IP地址。如果通过N-ISDN连网，用户可以使用的信道带宽是2B+D，数据速率最大可达到  (63)  。如果通过局域网连接因特网，接入方式可以采用ADSL，最高下行速率可以达到  （64）  。CHINADDN是中国电信提供的数字数据网，它采用  (65)  的交换技术为用户提供不同速率的专线连接。

  A.PPP

  B.HDLC

  C.Ethernet

  D.POP

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• 6● In C program, it is convenient to use a  (73)  to exit from a loop.

  A.end

  B.break

  C.stop

  D.quit

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• 7● In C language,  (74)  is a collection of one or more variables, possibly of different types, grouped together under a single name for convenient handling.

  A.a structure

  B.a file

  C.an array

  D.a string

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• 8● In C language, the usual expression statements are  (75)  or function calls.

  A.I/Os

  B.assignments

  C.operations

  D.evaluations

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