规格相同的瓶装了不同的液体，放在横梁已平衡的天平上，如图所示，则（　　）

根据短文内容，选择正确答案。

     Dabing and Xiaowei usually go to school by car. They drive past a cinema, a supermarket and a toy shop. The toy shop is next to the supermarket. Yaya and Xiaoli usually go to school by bus. They go past a bank and a post office. The bank is next to the post office. Longlong usually goes to school by bike. He passes by a police station, a library and a swimming pool（游泳池）.

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.