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【简答题】
请叙述各类型增压系统的特点。
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反馈参考答案：
举一反三
【单选题】What information is given?
A.
A phone number
B.
A street address
C.
An e-mail address
D.
A Web site address
【单选题】The web is fantastic at many things, e-mail, e-commerce, for example. But _____ your name is Amazon Or Google, making money has proved hard.
A.
if
B.
although
C.
unless
D.
as
【简答题】在 E-mail 、 Web 与 VoIP 中,出现最早的网络应用是 (____) 。
【简答题】E—mail及Web表单服务
【单选题】The web is fantastic at many things—e-mail, e-commerce, for example. But ________ your name is Amazon or Google, making money has proved hard.
A.
if
B.
unless
C.
although
D.
as long as
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