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【判断题】

冬季在站场上作业和行走时,可以戴妨碍视觉、听觉的色镜、帽子或其他遮盖物。

A.
正确
B.
错误
题目标签:视觉遮盖物听觉
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】人的听觉产生于()

A.
听觉感受器
B.
耳蜗
C.
鼓膜
D.
大脑听觉中枢

【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】人体形成视觉的部位是(  )

A.
视网膜
B.
感光细胞
C.
视神经
D.
视觉中枢

【单选题】造成视觉不随意运动的原因是()

A.
主体内在要求
B.
环境变化
C.
刺激强烈
D.
广告具新异性