单项选择题

A．By
B．At
C．In
D．On
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单项选择题
Brazil’s Environmental Ministry says ______.
A．the rate of deforestation of the Amazon rainforest has increased about 15 percent over last year
B．the rate of air pollution has increased about 15 percent over last year
C．the rate of land decreasing has increased about 15 percent over last year
D．the amount of rainfall has increased about 15 percent over last year
单项选择题
Why can middle-aged and old people have an easy access to drugs
A．Drugs are covered by their social welfare.
B．Drugs are covered by their medical care.
C．They rely on drugs to kill their pains.
D．They usually have money for drugs.
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