问题
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 ______.
答案
参考答案：C
解析：本题为细节辨析题。文中提到，当发动机温度警示灯亮起，表明发动机温度过高了，这时你应当尽快打开发热器，这样可以吸收一部分多余的热量。