由于高价彩礼、厚葬薄养等陈规陋习的出现，农民群众在婚丧嫁娶中的人情、宴席、彩礼等支出负担明显增加。今年两会期间，全国人大代表于莉提出建议：加强移风易俗日常监督，指导村级组织认真落实移风易俗相关措施，督
When we define our interfaces in C# 4.0, we are allowed to mark each of the generic parameters as in or out. If we try to set a generic parameter as out and that\'d lead to a problem, the compiler rai
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