题目

 （1）将3根离体神经纤维（枪乌贼的巨轴突）分别放置于盛有海水（A）、等渗KCI溶液（B）、等渗葡萄糖溶液（C）3个培养皿中。若都给予适宜的刺激，_______（填A、B、C编号）培养皿中的神经纤维可以产生神经冲动，原因是________。   （2）图为神经-肌肉链接示意图。C1、C2表示免疫细胞，黑点（●）表示神经元胞体，①～⑦表示神经纤维。按图示，肌肉受到刺激不由自主地收缩，神经冲动在神经纤维上出现的顺序依次为_______（填①～⑦编号）。大脑1、缺词填空。 Roy Trenton drove a taxi before．A short while ago, however, he b_________ a bus-driver and he feels no sorry about it．He is finding his new work far more i_________．When he was driving along Catford Street recently, he saw two thieves r________ out of a shop and run towards a waiting car．One of them was carrying a bag f _________of money．Roy acted quickly and drove the bus straight at the thieves．The one w________ the money got so afraid that he dropped the bag．As the thieves were trying to get a_______ in their car, Roy drove his bus into the b _______ of it．While the car was moving away, Roy stopped his bus and t_______ the police．The thieves' car was badly damaged （损坏）and e_______ to recognize（辨认）．Shortly afterwards, the police stopped the car and both men were c_______．