单项选择题

A．To demonstrate the latest use of computer graphics.
B．To raise funds for public television programming.
C．To explain the workings of the brain.
D．To increase membership in professional medical societies.
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单项选择题
A．To earn money for school.B．To keep his family’s yard looking nice.C．To be able to work outdoors.D．To get exercise while workin
A．To earn money for school.
B．To keep his family’s yard looking nice.
C．To be able to work outdoors.
D．To get exercise while workin
单项选择题
A．Five days.B．Six days.C．Seven days.D．Four days.
A．Five days.
B．Six days.
C．Seven days.
D．Four days.
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