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To prevent fatigue while driving, you should:
A.  Keep the cab warm.
B.  Keep the cab cool.
C.  Keep the cab poorly ventilated.
D.  Close the vents.
A hot, poorly-ventilated area can make a person sleepy. Opening a window, opening a vent, or using the air conditioning can help keep the cab cool and reduce the risk of fatigue.
Answer Statistics
10.27 % of our users get this question wrong.
This question's difficulty is Medium

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