小明跑1200米的跑程,时间由原来的5分钟缩短到4分,速度提高了______%
(14-15)÷15,
=120÷15,
=25%.
答:速度提高了25%.
句型转换。
1. He is as heavy as his brother. (改为一般疑问句)
___________________________________________________________________
2. Liu Tao does well in Chinese.(改为否定句)
3. Su Yang and Su Hai are watching TV now. (对画线部分提问)
4. We are going to have a class outing next week. (对画线部分提问)
5. There are fifty-four students in her class. (对画线部分提问)
支气管哮喘发作病人取
A.头低足高位,头偏向一侧B.去枕平卧位C.平卧位,头偏向一侧D.端坐位E.患侧卧位