第19题: [单项选择]What do we know from the talk A. The man has left for Beijing. B. The woman has left Beijing. C. The man has left Beijing. 参考答案:C 答案解析:[听力原文] W: I don’t know that you have left Beijing for months. M: I’m also surprised to know th
第24题: [单项选择]关于神经营养作用的描述中,哪一项是错误的?() A. 神经元能生成营养性物质 B. 营养物质的生成与神经冲动发放呈正相关 C. 神经的营养作用是调整被支配组织的内在代谢活动,并可影响与决定其生理功能 D. 用麻醉药阻断神经冲动传导,并不能改变所支配的肌肉发生内在代谢变化 参考答案:B