CRH1A型动车组制动面板位于()。 ["底架U13区","底架U11区","底架U10区","底架U8区"]
人体虱的形态特征与生活习性有(). ["身体狭长,背腹扁平","头部菱形,口器刺吸式","有一对膜质翅","生活史为全变态","雌雄成虫及若虫均吸血"]
干簧管是一种电子开关。()
旅游投诉处理机构应当()公布旅游者的投诉信息。 ["每个月","每季度","每半年","每年"]
CRH1A型动车组制动控制单元(BCU)是通过()总线实现网络通信。 ["TCMS","CAN","WTB","MVB"]
《帝王世纪》中记载“()……乃尝味百药而制九针,以拯夭枉焉。”