拔道指挥人打手势为:两手握拳,高举头上相碰,表示()。
A、拔小腰
B、拔大腰
C、拔钢轨接头
D、不拔小腰
参考答案:C
Change the forms of the following sentenses. 句型转换。
1. I think I can swim.(变为否定句)
2. I have some books to read.(变为否定句)
3. Li Lei will drive his car to school.(对划线部分进行提问)
4. I hurt my arm.(对划线部分进行提问)
5. will, do, for, you, what, the summer holiday.(连词成句)
定性分析法指对无法精确度量的一般因素实行的估量分析法。