[单选题] In the system development process,the code is written in the()p hase.

1、[多选题]The web browsers which is normal used,such as＿＿＿＿＿＿＿＿＿＿.

• A、ICQ
• B、Opra
• C、Firefox
• D、Internet Explorer
• E、Apple Safari

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2、[多选题]What make it is difficult to agree on how to count viruses?

• A、new virus arise from an existing virus
• B、some viruses can use polymorphic technique
• C、just a trivial change may creaｔe a new virus
• D、some viruses can creaｔe different versions when they infect other programs

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3、[多选题]Newer ideas in computing such as()have radically altered the traditional concepts that once determined program form and function

• A、distributed computing
• B、software engineering
• C、artificial intelligence
• D、parallel computing
• E、data mining

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4、[多选题]Information stored in semiconductor RAM is

• A、volatile
• B、permanent
• C、non volatile
• D、non permanent

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5、[多选题]In order to increase our computer’s performance we need to

• A、have a much larger main memory
• B、have a L2 cache
• C、buy a L2 cache
• D、buy a L1 cache

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