石路基和挡土墙路基有何不同？
参考答案：
砌石路基不承受其他荷载，亦不可承受墙背土压力，砌石路基适用于边坡防护；挡土墙支挡边坡，属于支挡结构。
根据中文提示，用词组的适当形式填空。每空一词。
1. Hurry up, or you'll be _______ ________ (迟到) school.
2. Mr. Brown lay down on the sofa and soon __________ ___________ (入睡).
3. —Would you like to _______ ____________ (去购物) this Sunday afternoon? —Yes, I'd like to.
4. People have cut down too many trees,so lots of rich land has _______ _______ (变成) desert.
5. This painting was thought highly of by Van Gogh, but it is _______ _______ (实际上) a forgery (膺品).
退休人员医疗保健的常见病主要有（）
A.各种癌症
B.中风
C.冠心病
D.糖尿病
E.高血压
