单项选择题

New cars are becoming faster and faster because ______.

A．the efficiency of the engines has improved a lot
B．the engines are more powerful
C．people like driving fast
D．highways provide enough chances for fast driving
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单项选择题
Which of the following is not one of Opel’s major considerations in developing a new car
A．Petrol consumption.
B．Speed.
C．Safety.
D．Comfortability.
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