Thewholebook________12units,______

发布时间：2020-07-27 04:39:53

The whole book ________ 12 units, ________ two mainly revisions．A.contains; includingB.includes; containingC.contains; containingD.includes; including

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A解析contain表示内容或成分；include表示范围或部分。句子中间是逗号，所以前面用一般现在时，后面用现在分词。
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