单项选择题

When you find the engine is hotter than normal, you should（）

A．drive to a service station to get a cool engine
B．turn off your heater so as to cool down the engine
C．switch on the heater as soon as possible
D．try to make the engine boil over

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热门试题

单项选择题From the situation described in the first paragraph, we know that（）

A．drivers should learn how to repair their own cars
B．driving alone on the highway can be very dangerous
C．one has to be very careful in handling a car emergency
D．this passage is intended for drivers facing an emergency

单项选择题What will happen to the engine when oil pressure drops（）

A．It will be damaged when the engine stops working.
B．Very soon it will be severely damaged.
C．Serious damage to it is not likely to occur within the first few minutes.
D．Damage may occur to the engine when you drive the car at high spee