[多选题] ADO.NET relies on the services of.NET data providers.There are

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]()is a type of eｘecutable file.

• A、EXE file
• B、COM file
• C、JPG file
• D、TXT file

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3、[多选题]According to the physical size of computers we can classify the computers into

• A、minicomputer
• B、microcompute
• C、mainframe
• D、supercomputer

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4、[多选题]The two most common types of scanners are()and()

• A、hand-held scanners
• B、handler scanners
• C、flatbed scanners
• D、auto scanners

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5、[多选题]Middleware lies in

• A、the top of an operating system
• B、the middle of the layering vertical stack
• C、the middle of interactions between different application programs
• D、the top of the layering vertical stack

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