用细线悬挂的小球从图中所示位置静止释放,若忽略空气阻力,那么小球在最高点的势能____下降至最低点的动能;实际上,小球在摆动过程中,会与空气摩擦产生热,摆幅逐渐减小,最终停下来,那么在摆动过程中由于摩擦而转化的内能____小球在最高点所具有的势能.(填“大于“、”等于“或”小于“)
完型填空。
Lynn and Lily 1good friends. They are in the same class. They2 Chinese, English and Maths every day. Lynn likes Chinese and English, but Lily doesn't3them. She likes Maths. They have PE and Art4Friday. They like 5 pictures and playing basketball. So they all like Friday.
下列计算中,正确的是( )