消化道平滑肌的基本电节律A.与平滑肌收缩节律无关 B.其产生主要依赖Ca2+的内流 发布时间:2017-06-11 01:35 │ 来源:www.tikuol.com 题型:单项选择题 问题: 消化道平滑肌的基本电节律A.与平滑肌收缩节律无关B.其产生主要依赖Ca2+的内流C.直接导致平滑肌收缩D.决定平滑肌蠕动的方向和速度
题型:单项选择题 按要求改写句子,每空一词。1. We can take a taxi to go there.(改为同义句) We can go there . 2. There is nobody in the class.(改为同义句) There is in the class. 3. The population of the small town is about 1,200. (就划线部分提问) the population of the small town? 4. I can answer the question. (改为否定句)I answer the question. 5. She is going to be a nurse in the future. (就划线部分提问) is she going in the future? 查看答案