中华开国五千年，神州轩辕自古传。创造指南针，平定蚩尤乱。世界文明，唯有我先。

——孙中山   

This is Jim’s room. It’s a nice room. Some pictures are on the wall (墙). There’s a desk and a chair in his room. There is a sofa and a bookcase, too. The desk is between (在……之间) the bed and the bookcase. His backpack and pencil case are on the desk. His pencils, pen and ruler are in the pencil case. His sofa is near the desk. His baseball is under the bed.

世界最高峰珠穆朗玛峰海拔8844米，我国陆地最低的地方吐鲁番盆地在海平面以下155米，两地相对高度是(     )