题目

—________—Yes. They are my favorite days. A . What are your favorite days? B . Do you like Saturday and Sunday? C . What about your favorite days? D . How about Saturday and Sunday? 答案：B对图中四个图的解释，其中正确的是A．①图中滚摆旋转后上升时，旋转的速度越来越快B．②图显示了电磁感应现象的原理C．③图的实验说明铅制的两金属圆柱体的分子间存在引力D．④图的情景说明当容器里装有两种不同的液体时，a点的压强比b点的大