What does the author use the example of his father to illustrate?

作者用他父亲的例子来说明什么？

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The author uses the example of rattle to show that in toy-making there is a continuity in the use of materials.

作者以拨浪鼓为例，说明了在玩具制作过程中，材料的使用具有连续性。

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Why didn't the author use a different argument?

为什么作者没有用一个不同的论据？

youdao

The unnamed author says al-Qaida will use the information to target American vessels, including aircraft carriers, submarines,and all naval equipment deployed in the region.

VOA: standard.2010.01.07

Ralph Benko is a senior economic advisor to the American Principles Project, and is the author of The Websters' Dictionary: How to Use the Web to Transform the World.

FORBES: Magazine Article

In his intriguing book, Why Things Bite Back, author Edward Tenner shows how the use of technology to make life better often has unexpected and ugly consequences.

FORBES: The Internet's Unintended Revenge

"One of the things that's remarkable is how similar we use feathers to the way birds do, " the author observed.

WSJ: Of Feathers, Showgirls and Biology