单项选择题

How many barrels has the production in OPEC countries been per day with current high demand

A．24,500,000.
B．22,000,000.
C．26,000,000.
D．25,000,000.
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单项选择题
The number of patients who died of the Ebola-like disease in southern Sudan has now been up to
A．fifteen
B．four
C．eleven
D．twenty
单项选择题
According to Dr. Walker, which can describe the newly reported disease most appropriately
A．The newly reported disease holds a mortality rate of 50 percent.
B．The virus of the disease can be spread through contract with infected sweat.
C．Ninety percent of patients infected by the virus die of the disease.
D．The virus of the disease can only be carried by desert rats and primates.
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