赔偿请求人请求国家赔偿的时效自国家机关及其工作人员行使职权时的行为（）起计算。 ["发生之日","被申请行政复议或被提起行政诉讼之日","被依法确认为违法之日","被赔偿请求人认为违法之日"]
The Bill of Lading is described as（）if the shipowners agree that the cargo were received on board in good condition. ["clean","dirty","foul","claused"]
The suction - force principle of operation is a typical characteristic of （）. ["centrifugal pumps","jet pumps","propeller pumps","reciprocating pum"]
对于气量小，管线压力低的可采取（）。 ["放空测气","密闭测气","双波纹管测气","常规测气"]
工会应当健全职工服务体系，创新服务方式，组织下列哪些活动（） ["法律服务","困难帮扶","心理关爱","文化体育等活动"]
明确会议的（）是会议准备的第一步，也是整个会议工作最重要的一步。
