单项选择题

How much time does it take alcohol to enter a woman's bloodstream after she takes a drink

A．About one hour.
B．A few seconds.
C．Several minutes.
D．At least 24 hours.
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单项选择题
In the last paragraph, the word designated is closest in meaning to ______.
A．abstract
B．planned
C．evil
D．chosen
单项选择题
According to the passage, how does the concentration of alcohol in a fetus compare to that in the mother
A．The concentration is more.
B．The concentration is less.
C．The concentration is equal in amount.
D．The concentration cannot be measured.
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