单项选择题

A) directories B ) instructions C) specifications D) commentaries
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单项选择题
A potential problem which might be caused by the use of an artificial nose is______.
A．negligence of public safety
B．an abuse of personal freedom
C．a hazard to physical health
D．a threat to individual privacy
单项选择题
What was the percentage of high school graduates admitted to universities in Britain thirty years ago
A．20% or so.
B．About 15 %.
C．Above 30%.
D．Below 10 %.
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