单项选择题

________ of the population is illiterate.

A．50%.
B．2%.
C．4%.
D．6%.
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单项选择题
The educational system in the United States is based on________.
A．the Federal Government
B．the individual school
C．the respective state
D．the local communities
单项选择题
Mr Johnson would like to work as a(n)________.
A．adviser
B．computer programmer
C．product designer
D．school teacher
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