— Do you think the MP3 player put its listener ?
— Yes, too much use of it could lead to hearing loss, experts say.
A. under control
B. at risk
C. in use
D. on top
网友回答
A. under control
(答案→)B. at risk
C. in use
D. on top
解析：短语辨析。A.情况正常 B.处于危险中 C. 在使用中 D.领先。句意：你认为mp3播放器让他的听者处于危险中吗？——也是，用它太多会导致听力损失，专家说。故选B。