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How could Dennis distinguish between a small b

2022-08-01 22:02:15 问答库阅读 167 次

问题详情

How could Dennis distinguish between a small ball and a large ball from a distance of 3 feet？ The large ball would produce ______.
A．a sharper sound
B．a softer sound
C．a higher-pitched sound
D．a louder sound

参考答案

正确答案：D
解析：该题问：在三英尺远的距离，Dennis怎样区别一个小球和一个大球?大球会发出怎样的声音?A项意为“尖利的声音”；B项意为“柔软的声音”；C项意为“更高一些的声音”；D项意为“更大些的声音”。从本文的第五段中可以找到线索：the larger the object，the louder the signal．因此可判断D项为正确选项。