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【单选题】
从听觉障碍的分类来看，患者对于叫喊声及洪亮的声音如汽车喇叭声、鼓声才有反应，这属于（）
A.
二级重听
B.
一级重听
C.
二级聋
D.
一级聋
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbid the practice of making ads louder than the programming. In addition, t...
A.
TV stations always operate at the highest sound levels
B.
their sound levels are kept around peak levels
C.
their sound levels are kept in the middle frequency ranges
D.
unlike regular programs their intensity of sound varies over a wide range
【单选题】汽车喇叭声级合格范围应为（）
A.
85dBA.～100dBA.
B.
90dBA.～100dBA.
C.
90dBA.～105dBA.
D.
90dBA.～115dBA.