答案:C
社会医疗保险和商业医疗保险的相同点表现在()
A.保险的目的
B.经营的机构
C.经营的目的
D.投保的原则
E.经营的方式
The distance between the two NAVTEX stations with the same B1 character should be not exceed()nautical miles.
A.400
B.240
C.450
D.180