《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。
