A-A+
If someone holds a book 6 feet directly in fro
问题详情
If someone holds a book 6 feet directly in front of Denis and then moves it only 1 foot directly in front of him, what change in sound does. Dennis hear？
A．A lover-pitched sound.
B．A higher-pitched sound.
C．A sharper sound.
D．A softer sound.
参考答案
正确答案：A
解析：该题问：如果有人拿着一本书在Dennis前面6英尺远，然后移动至1英尺远，Dennis听到的声音变化是怎样的? A项意为“低音的声音”；B项意为“高音的声音”；C项意为“刺耳的声音”；D项意为“柔软的声音”。从本文的第五段中可以找到线索：The closer an object is, the lower the pitch，因此可判定A项为正确选项。
