五、稳健性检验——基于倾向得分的方法 由于参军是一个自我选择（self-selected）的行为，所以可能存在劳动力自身的一些不可 观测的因素同时影响其参军决策以及收入。
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Zhong-han Wang's Self-selected Academic Works 王钟翰学术论着自选集
self-selected path 自选路径
self-selected diets 自订食谱
One group of teens ate self-selected low-calorie meals not exceeding 1,300 to 1,500 total calories per day.
一组肥胖少年采用自选的低卡路里餐，每天摄入的卡路里总量不超过1300至1500。
The new study has some obvious shortcomings, particularly that it relies entirely on self-reports from a self-selected group of respondents.
新的研究也有些明显的缺点，尤其是它完全依赖自己选择参加的受试者的自述。
I've seen many foreign friends elicit guffaws from native Mandarin speakers when announcing their self-selected Chinese designations.
我多次见过这样的情景，当外国朋友报上自己取的中文名字时，母语为汉语的人往往爆发出哄堂大笑。
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