The car is running at the ______ of 40 kilometers an hour.

admin2009-05-04  38

问题 The car is running at the ______ of 40 kilometers an hour.

选项 A、rates
B、rating
C、rate
D、rated

答案C

解析 本题考查的是名词rate的用法,at the rate of以…的速度行驶。
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