引起气瘿的内因是（）
A.情志不畅
B.肝郁气滞
C.外邪入侵
D.脾失健运
E.湿痰凝聚
参考答案：A, B, D, E
Our class ______ the biggest in Grade Three and our class ______ all crazy about pop music.
A．are; is
B．are; are
C．is; are
D．is; is
