‎运动员在完成腾空飞脚时，脚尖未过肩，C组难度不确认‌

单项选择题Nowadays, the train which most people refer to when they talk about the Orient Express is the Venice Simplon-Orient-Express. A、正确 B、错误

单项选择题According to the 4th video clip, based on the characteristic of specialties, hospitals can be divided into following categories except ______. A、general hospitals B、specialized hospitals C、teaching hospitals D、district hospitals