单项选择题

Firewall is a （）mechanism used by organizations to protect their LANs from the Internet.

A．reliable
B．stable
C．peaceful
D．security

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单项选择题
A Web（）is one of many software applications that function as the interface between a user and the Internet.

A．display
B．browser
C．window
D．view
单项选择题
（）is the conscious effort to make all jobs similar, routine, and interchangeable.

A．WWW
B．Informatization
C．Computerization
D．Standardization
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