《灵枢·百病始生》指出:百病皆生于()
A.寒暑
B.阴阳
C.喜怒
D.清湿
E.风雨
参考答案:A, C, D, E
Since you are always working hard at your lessons, your efforts will ________.
A.pay off
B.pay for
C.pay back
D.pay out
近代文化的核心是。