单项选择题

What is the talk' mainly about

A．Automobile safety.
B．Increasing fuel efficiency.
C．California's pollution laws.
D．Electric-powered cars.
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单项选择题
What is the main advantage of electric cars over gas-powered cars
A．They are cheaper.
B．They do not pollute as much.
C．They are simpler to drive.
D．They are faster.
单项选择题
What is the main drawback of the electric car
A．It is not comfortable.
B．It is difficult to steer.
C．It cannot go long distances without recharging.
D．Its engine easily overheats.
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