单项选择题

Who had gas-masks

A．Everybody.
B．A part of the protestors.
C．Policemen.
D．Both B andC.
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单项选择题
Which of the following is Not true
A．Advertisement makes contribution to our pockets and we may know everything.
B．We can buy what we want.
C．Good quality products don't need to be advertised.
D．Advertisement makes our life colorful.
单项选择题
Only the most ______ mind would assert nowadays that a degree from university is most important.
A．sophisticated
B．competitive
C．considerable
D．superficial
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