内伤腰痛的证候特征是（）
A.起病缓慢
B.腰痛绵绵
C.时作时止
D.遇劳加剧
E.按之痛减
参考答案：A, B, C, D, E
― I don't know ______. Can you tell me?
― In the school hall. [ ]
A. where we'll have a party
B. when will we have a talk
C. when we'll have a meeting
D. where are we going to see the film
依法必须进行招标的项目，招标人应当自确定中标人之日起( )，向有关行政监督部门提交招标投标情况的书面报告。
A．7日内
B．10日内
C．15日内
D．20日内
