从方框中选择适当的单词完成短文。

   What's this on the table? It is a ____  of my new classroom. ____  at the picture. ____  can you see ____  the classroom? I can see a ____  desk in the front of the classroom. Some books are ____  the desk. I can see two white ____ , too. There are____  colored chalks (彩色粉笔n them. ____  is the broom (扫帚)? It’s ____  the door. I like this new classroom.

如图电路中，当只闭合开关S₂时，L₁、L_{2 ____}联；当闭合开关S₁、S₃时，L₁、L_{2 ____}联；当同时闭合S₁、S₂、S₃时，电路会发生 ____，损坏电源．

下列营养物质中，可以不经过消化，在消化道内直接被吸收的是（　　）