单项选择题

Right now the California Air Resources Board requires that a percentage of new cars sold should be free of emissions. What is that percentage

A．1%.
B．5%.
C．10%.
D．100%.
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单项选择题
Approximately how many electric cars are now on California roads
A．200
B．2,000
C．20,000
D．200,000
单项选择题
How did Californian Michael Schwabe feel about driving an electric car
A．Too expensive.
B．Hard to drive.
C．Easy to control.
D．More than just a charge.
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