—— 请按键盘 空白键 开始游戏 ——

Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
法律即理性,应当摆脱激情。
一个好的科学家就像侦探,总是在细节中寻找线索。
When the third appeared, he thrust at it with the knife, only to feel the blade[刀片] snap as the fish rolled.