伊朗闻名世界的出口商品是[ ]
A．棉被
B．扇子
C．羊毛
D．地毯
答案：D
冠心病的易患因素（）
A.女性
B.低脂饮食
C.吸烟
D.年龄小于40岁
E.青年男性
The reason why the traffic was stopped was the bridge () was broken.
A．how
B．that
C．because
D．for
