管子的胀接是利用管子的()变形和管板的()变形,将管子与管板连接在一起。
参考答案:塑性;弹性
句型变换。
1. That is his sister. (改为一般疑问句)
_______ _______ his sister?
2. Mike is fine. (对划线部分提问)
_______ _______ Mike?
3.This is my watch. (改为复数形式)
_______ are my _______ .
4. Those are my brother's computers. (改为否定句)
_______ _______ my brother's computers.
5. photo, here,family,is my, a, of (连词成句)
_______________________________________.