[阅读理解]

【题干】Originally introduced by Netscape Communications, (1) are a
general mechanism which HTFP Server side applications, such as CGI
(2) , can use to both store and retrieve information on the HTTP (3)
side of the connection. Basically, Cookies can be used to compensate for
the (4) nature of HTTP. The addition of a simple, persistent,
client-side state significantly extends the capabilities of WWW-based(5) .

【题目】4.A. fixed
B. flexible
C. stable
D. stateless

1、[多选题]The equipment().

• A、transfers the number of bits in parallel
• B、manipulates digital information internally in word units
• C、transfers the number of bits in serial form
• D、manipulates digital information internally in serial form

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2、[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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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]A program is a sequence of＿＿＿＿＿＿＿＿that can be eｘecuted by a computer.It can either be built into the hardware or exist inde pendently in the form of＿＿＿＿＿＿＿＿.

• A、data
• B、hardware
• C、instructions
• D、software

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5、[多选题]A virus is a program that reproduces its own code by().

• A、inserting into the middle of a file
• B、adding to the end of a file
• C、simply placing a pointer
• D、replacing another program

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