When you finish reading this book, you will have better knowledge of first aid.A. a, the B. the, a C

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【题目】When you finish reading this book, you will have ____ better knowledge of ___ first aid.

A. a, the B. the, a C. /, the D. a, /

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【答案】D

【解析】

试题分析：句意：当你读完这本书，你会对急救有更好的了解。have a knowledge of 对…有所了解；first aid急救。故选D。