通常说的“三基”训练中“三基”是指什么？
参考答案：基础理论、基本知识和基本技能。
A vessel, other than a rescue unit, designated to co-ordinate surface search and rescue operation within a specified area is known as（）.
A.salving vessel
B.co-ordinator surface search
C.mersar
D.the vessel being salved
有意见认为，物业管理在我国尚处于起步阶段，目前阶段的物业管理，基本限于（）之内。
A.城市
B.农村
C.乡镇
D.乡村
