4＋7=____

如图所示电路中，电源电压保持不变，滑动变阻器的滑片P向左滑动时，电压表与电流表的示数将（   ）

This piece of music _______ beautiful.

    This is my school. There are many trees and flowers in it. It's very beautiful. The teaching building is big and tall. There is a big playground in our school. After 4:30 in the afternoon, many students come to the playground to play football and some students play table tennis in the table tennis room. There are 1,200 students and 25 classes in our school. The students all like to study. The teachers in our school are very good. They help the students to study and the students like them, too