血吸虫患者的粪便为() ["中性","酸性","强酸性","碱性","强碱性"]
颈椎张口位摄影,错误的是(). ["上颌切牙咬合面与乳突尖连线垂直于床面","头后仰","中心线向头侧倾斜150","尽量张大口","主要观察寰枢椎"]
我国的毒品不包括() ["海洛因","可卡因","酒精","苯丙胺","大麻"]
下列关于酒精性震颤谵妄的叙述不正确的是() ["约在突然断酒后48小时发生","有意识障碍","症状多迁延,可持续数月","全身肌肉有粗大震颤是早期特征之一","有大量的知觉异常"]
在蝌蚪的下列特点中,哪一点不能说明两栖类是由鱼类进化而来的()。 ["呼吸器官是鳃","体表有侧线","循环系统心脏是一心房一心室,一条循环路线","有口有肛门,肛后尾"]
雨篷的破坏形式有哪些?