单项选择题

The concept of personal choice concerning health is important because

A．personal health choices help cure most illnesses.
B．it helps raise the level of our medical knowledge.
C．it is essential to personal freedom in American society.
D．wrong decisions could lead to poor health.
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单项选择题
According to Fries and Crapo sound health choices should be based on
A．personal decisions.
B．society's laws.
C．statistical evidence.
D．friends' opinions.
单项选择题
Which of the following is NOT true according to the passage
A．In programmed research scientists have a supposed program to go by.
B．Government departments apply programmed research on an increasing scale nowadays.
C．Applied science and pure science rely on each other.
D．Private industrial departments are not a little interested in long-term research.
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