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57、The following suggestions increase programs’(1)and make them easier to(2):
1、Use a standard indention technique,blank lines,form feeds,and spaces.
2、Insert plenty of comments into your code.
(1)A、reliability B、security C、usability D、readability
(2)A、compile B、execute C、maintain D、interrupt
58、A ( ) is a feature of the system or a description of something the system is capable of doing in order to fulfill the system’s purpose.
A、design B、requirement C、document D、plan
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