When I put the wet glass on the table, I found it left a ________on the surface of the table.      

如图所示电路中，已知R₁＞R₂，电源电压U保持不变，在相同的时间内四个电路中总共放出的热量由多到少的顺序是（   ）

阅读理解

　  Tim and Li Fang are not going to have any classes next week. They're going to work on a farm.

      They are going to leave at about seven thirty on Monday morning. They are going to travel to the farm by bus. They are going to wear old clothes because they are going to grow rice. They are going to have fish for lunch. They are also going to have a swim at the farm.

     Tim and Li Fang are excited about going to the farm. Not only are they going to help around the farm, but also they are going to learn about farming.

      Li Fang is worried that Tim won't arrive on time to catch the bus because he is nearly always late. Li Fang often has to say to him, “Don't be late, Tim. ”

下列加线字注音有误的一项是(   )