火车从甲站到乙站的正常行驶速度是16m/s,有一次火车从甲站开出,由于迟开了300s,司机把速度提高到72km/h才刚好正点到达乙站,求:甲、乙两站的距离是多少?
S=24km
I was still sleeping at home when a fire ________ not far away from my house, and then it spread quickly.[ ]
A. came out
B. got out
C. put out
D. broke out
厌食的主要病机是()
A.脾胃虚弱,纳化无权
B.脾失健运,乳食不化
C.暑湿内伤,脾为湿困
D.脾胃不和,纳化失职
E.肝郁气滞,乘脾犯胃