单项选择题

A lot of people could fall iii after drinking contaminated water.

A．muddled
B．polluted
C．mixed
D．troubled
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单项选择题
Japan has a long trading tradition.
A． Right
B． Wrong
C． Not mentioned
单项选择题
What factor can be attributed to German prosperity
A．Technology transfer.
B．Good management.
C．Hard work.
D．Fierce competition.
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