下图为某反射弧的模式图已知某化学物质可以阻断反射活动请完成以下实验设计思路以研究该化学物质是阻断了兴奋在神经纤维上的传导还是阻断了兴奋 Template




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tomski下图为某反射弧的模式图已知某化学物质可以阻断反射活动请完成以下实验设计思路以研究该化学物质是阻断了兴奋在神经纤维上的传导还是阻断了兴奋 coloring