题目

—shirt is this? Is it Li Liang's?—No, it's Tiantian's. A . What B . Who C . How D . Whose 答案：D下列各项中，属于吸烟对人体产生危害的是（　　）A.易引发癌症B.易引发高血压C.易引发冠心病D.以上都是