与原发性支气管癌发病无关的因素是()
A.长期吸烟
B.空气污染
C.职业危害
D.肺结核
E.急性上呼吸道感染
参考答案:E
按今天计算,上午卖了12箱,下午卖的是上午的1.5倍,全天能销售360千克.每箱苹果多少千克?
So seriously that he had to stop playing in the football match
A.his feet were hurt
B.were hurt his feet
C.hurt were his feet
D.were his feet hurt