单项选择题

The HIV virus is an excellent warrior to fight the body's immune cells.

A． Right
B． Wrong
C． Not mentioned
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单项选择题
The HIV virus has caused more deaths in developed countries.
A． Right
B． Wrong
C． Not mentioned
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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