单项选择题

We can infer from the last paragraph that ______.

A．smokers should not expect to become airline pilots
B．smoking in emergency cases causes mental illness
C．no airline pilots smoke during flights
D．smokers may prove unequal to handling emergency cases

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单项选择题

One of the major difference between American and European schools was ______.

A．that American schools were colonial and therefore were under European control
B．that American schools desired to be expressive
C．that American schools emphasized the need of intellectual freedom
D．that American schools were for common citizens while European schools were for nobles

单项选择题

Another distinctive quality of American schools was that ______.

A．the local government was free to organize its own educational system
B．the local government was compelled to follow the central authority
C．each community was free to decide whether to provide education or not
D．the school was controlled by the federal government

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