单项选择题

The idea of using HIV for a beneficial purpose has been widely accepted.

A． Right
B． Wrong
C． Not mentioned
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单项选择题
The book provides a concise analysis of the country's history.
A．clean
B．perfect
C．real
D．brief
单项选择题
Our statistics show that we consume all that we are capable of producing:
A．waste
B．buy
C．use
D．sell
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