某些麻醉剂是一种神经递质的阻断剂当人体使用这些麻醉剂后痛觉消失了而其他大部分神经的传递功能正常这一事实说明 A.不同的神经纤维 Template




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tomski某些麻醉剂是一种神经递质的阻断剂当人体使用这些麻醉剂后痛觉消失了而其他大部分神经的传递功能正常这一事实说明 a.不同的神经纤维 coloring