【简答题】是心房和心室在心的表面分界的标志;先天性心脏病的房间隔缺损多发生于 ;主动脉弓的凸侧从右向左发出3大分支: 、 和 。
【单选题】25 对于利用公共资源建设的景区的门票以及景区内的游览场所、交通工具等另行收费项目,依据我国《旅游法》规定,实行( )。
【简答题】在心脏表面,心房与心室分界标志是 ,左、右心室的分界标志是 。
【单选题】What is the chief advantage of the virtual reality techniques when used in microsurgery?
A.
The medical students and surgeons can use it to practise simulated surgical operations as if operating on a real patient.
B.
Medical students and surgeons can do any operations without considering their consequences.
C.
It helps to do operations on human eyes extremely accurately.
D.
It allows surgeons and their students to set their imagination free.
【单选题】microsurgery involves_____.
A.
a small area of the body