问题
单项选择题 A型题
当各个物体间有清楚的分隔时，在超声检查中所能发现的最小间隙取决于声波的（）。
A.声强
B.波长
C.衰减
D.声速
E.频率
答案
参考答案：B
解析：超声波的波长影响纵向分辨力，波长越短纵向分辨力越高。
搜题请搜索小程序“爱下问搜题”
当各个物体间有清楚的分隔时，在超声检查中所能发现的最小间隙取决于声波的（）。
A.声强
B.波长
C.衰减
D.声速
E.频率
参考答案：B
解析：超声波的波长影响纵向分辨力，波长越短纵向分辨力越高。
Passage Three
Why does Hunter think female voices may also activate the mind’s eye in females
A．Because those women’s voices sound like men
B．Because a woman would compare her voice to that of the other female speakers.
C．He does not explain it clearly in this article.
D．Because the area of the mind’s eye is geared for sound.