口腔癌致病因素包括
A．光辐射
B．吸烟
C．饮酒
D．喝咖啡
E．嚼槟榔
参考答案：A,B,C,E
怎样理解：“诸风掉眩，皆属于肝”
During the Spring Festival, the heavy snow stopped many people from _____ back home.[ ]
A. go
B. goes
C. went
D. going
