Warning: Missing argument 3 for write(), called in /www/wwwroot/biwei1.cn/incs/robot.php on line 68 and defined in /www/wwwroot/biwei1.cn/incs/data.php on line 487 前几天发了个很简单的物理论文abstract,很娱乐。今天发个经济学的,就一句话“This is a paper about nothing.” 来自普林斯顿某大牛。(@兰小欢)