题目

The coat I bought yesterday is not expensive at all. As a matter of fact, I would gladly have paid for it. A . as much twice B . much as twice C . as twice much D . twice as much 答案：D刻度尺是我们常用的学习工具，它不仅可以用来测量物体的长度，辅助作图，还能用来完成一些物理小实验，请你参照示例利用刻度尺设计两个小实验，分别用来说明电学和声学的相关知识．实验的方法实验的现象能说明的物理知识示例将刻度尺抛出刻度尺落向地面物体受到的重力方向竖直向下电学声学