单项选择题

Which kind of security is more complicated

A．security used to send credit card data
B．security used in Webs
C．security used within the company
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单项选择题
38（）

A．without
B．with
C．by
单项选择题
What is the function of software of Web services
A．It is less interesting than Web service itself.
B．It is the most important part of Web service.
C．It is more like standardized pipes.
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