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The speed of a car is 90 kilometers per hour. Which of the following must be true? (1mile=1.603 kilometers, 1foot=0.304 meters)
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A.The speed of the car is less than 60 miles per hour.
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B.The speed of the car is more than 30 feet per second.
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C.The speed of the car is equal to 350 feet per minute
A,B显示答案
