[单选题] Which of the following facts is(are)mentioned about the usage on Web 2.0 in this article?

1、[单选题]The software that controls the interaction between the input and output hardware is called BIOS,which stands of()

• A、Classic Input Output System
• B、Junior Input Output System
• C、Advanced Input Output System
• D、Basic Input Output System

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2、[多选题]Security is usually enforced through().

• A、auditing
• B、encryption
• C、access control
• D、data storing
• E、data retrieving

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3、[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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4、[多选题]We can classify programming languages under two types:()langua ges and()languages.

• A、low-level
• B、advanced-level
• C、high-level
• D、basic-level

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5、[多选题]The tools which Programming software usually provides include:

• A、text editors
• B、linkers
• C、interpreters
• D、debuggers
• E、compilers

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