2. 考研
  3. Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour.

Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour.

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问题 Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour.
选项 A、velocities
B、impulses
C、ratios
D、atrocities
答案A
解析 本题考查名词的词义辨析。句中speeds意为“速度”。四个选项中，velocity意为“速率，速度”。impulse意为“冲动；推动；脉冲”。ratio意为“比，比率”。atrocity意为“滔天的罪行，暴行”。句意为：神经信号能以高达每小时200英里的速度在神经或肌肉纤维中传递。
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