When flint to the market, these products enjoyed great success. A. introducing B. introduced C. introduce D. being introduced 【查看更多】

 

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When first ______ to the market, their products enjoyed great success. 　　　　　　　　　　　　　　　　　　　　　　　 (2004 全國卷II)

　 A. introducing　 　 B. introduced 　 C. introduce D. being introduced

 

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