单项选择题

A．Stay inside.
B．Read outside.
C．Work outside.
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单项选择题
The first tin coins were made ______.
A．in China
B．in Philippine
C．in England
D．in countries of Africa
单项选择题
This article tells that the Speech Machine’s system comes from ______ technology.
A．military
B．traditional
C．E-mail
D．internet
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