______is the speed at which something moves in a particular direction.A、Voltage

游客2023-11-03  21

问题 ______is the speed at which something moves in a particular direction.

选项 A、Voltage
B、Velocity
C、Proportion
D、Frequency

答案 B

解析 名词辨析题。velocity意为“速率”,符合句意,故[B]为答案。voltage意为“电压”;proportion意为“比例;面积”;frequency意为“频率”。
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