ASCII is a 7-bit code used to represent numeric，alphabetic，and special printable characters．It also includes codes for control characters，which are (75) .(75)

A．printable or displayable

B．not printable or displayable

C．not printable but displayable

D．printable but not displayable

[单选题]A．SCII is a 7-bit code used to represent numeric, alphabetic, and special printable characters. It also includes codes for control characters, which areA．printable or displayableB．not printable or displayableC．not printable but displayableD．printable

[单选题]A．n area code is used to______.A． show how big the ares isB． make long-distance callC． check the telephone bookD． make telephone call only in New York city

[单选题]用ASCII码(7位)表示字符5和7为( )。A．1100101和1100111B．10100011和01110111C．1000101和1100011D．0110101和0110111

[单选题]已知7的ASCII码为37H，则5的ASCII码为A．34HB．35C．35HD．36

[单选题]用标准ASCII符(7位)表示数字5和7为( )。A．1100101和1100111B．1010011和0111011C．1000101和1100011D．0110101和0110111

[单选题]代码走查(code walkthrough)和代码审查(code inspection)是两种不同的代码评审方法，这两种方法的主要区别是______。A．在代码审查中由编写代码的程序员来组织讨论，而在代码走查中由高级管理人员来领导评审小组的活动B．在代码审查中只检查代码中是否有错误，而在代码走查中还要检查程序与设计文档的一致性C．在代码走查中只检查程序的正确性，而在代码审查中还要评审程序员的编程能力和工作业绩D．代码审查是一种正式的评审活动，而代码走查的讨论过程是非正式的

[名词解释] 码元（code）

[单选题]140个字节（每字节8个Bit）可以最多容纳多少个7Bit英文字符？（）A . 70个B . 140个C . 150个D . 160个

[单选题]International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code) of______.A．SOLASB．MARPOLC．STCWD．Ballast Water convention

[名词解释] 条码 bar code