NO.PZ2018091705000072
问题如下：
Marion is considering purchasing medical insurance. He asks his investment manager for advice regarding a policy that potentially would allow him to go to essentially any medical service provider with a"reasonable and customary" fees. Given Marion’s policy preference, which type of medical insurance should his investment manager recommend?
选项： Indemnity plan
Preferred provider plan
C.Health maintenance organization plan
解释：
A is correct.
考点：Health/Medical Insurance
解析：indemnity plan允许被保险人前往任何医疗服务机构，但被保险人必须支付一定比例的"合理"费用。
health maintenance organization (HMO), which allows office visits at no, or very little, cost to encourage individuals to seek help for small medical problems before they become more serious
这里HMO也是可以去任何医疗机构，indemnity plan也是可以去任何医疗机构。不是很明白区别是啥
