The author uses the example of rattle to show that ________.

A) in toy-making there is a continuity in the sue of materials
B) even the simplest toys can reflect the progress of technology
C) even the simplest toys can reflect the progress of technology
D) even a simple toy can mirror the artistic tastes of the time
出自:河南师范大学-小学教育(本科)-大学英语Ⅱ

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