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单项选择题
A．The progress in developing alternative energy.B．The abundant deposit.C．The development of technology.D．All of the abov
A．The progress in developing alternative energy.
B．The abundant deposit.
C．The development of technology.
D．All of the abov
单项选择题
The expenditure in American public schools is guided or decided by ______.
A．teachers
B．students
C．headmasters
D．boards of education
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