There are more than 200 stars in our galaxy A. billions B. billions of C. billion

发布时间：2020-08-21 17:24:14

There are more than 200     stars in our galaxy
A. billions             B. billions of          C. billion

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解析：此题考查数的表达方式。确切数量的结构是数词+hundred/thousand/million+名词的复数形式；不确切数量是hundreds/thousands/millions of+名词的复数形式。
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