Becker允许将一些非货币因素，比如浪漫的爱情和友谊，加入到求爱时期的损益表中。
Becker allowed nonmonetary elements, like romantic love and companionship, to be entered into courtship \ 's profit and loss statement.
在此基础上，结合现实情况，分析了货币性因素和非货币性因素对民工策略选择的双重影响。
The article realistically analyses the double effects of monetary and non monetary factors when peasant workers select their strategies.
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