假设1980～1990年期间，名义GDP从10000亿美元增加到25000亿美元，物价指数从100增加到200。下列哪一选项是用1980年的价格表述了1990年的GDP？()
A. 10000亿美元
B. 12500亿美元
C. 25000亿美元
D. 50000亿美元
查看答案
A．It closes at Saturday and Monday to save money.B．The running cost of the Library is
A. It closes at Saturday and Monday to save money.
B. The running cost of the Library is rising.
C. The Library is a very special place.
D. The government doesn't pay for the Library.
【B11】
A. eyesight
B. direction
C. heart
D. interest
Why do many home-schoolers' parents believe that public education is inferior？
A. Public schools take into consideration every individual child's learning speed.
B. Public schools are charging more than they can offer to the full-development of students.
C. Public schools cannot offer enough teaching materials to every individual child.
D. Public schools often teach students too much useless political nonsense.
Parents stop being too concerned with the possible isolation of their home-schooled children when______.
A. organized activities are also open to home-schooled children
B. virtual communities have made information exchange possible
C. the Internet has provided more updated materials
D. parents are able to stay at home for longer hours
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