◎ 题干
When first ______ to the market, these new products in their company enjoyed a great success.
A.IntroducingB.introducedC.to introduceD.being introduced
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“When first ______ to the market, these new products in their company enjoyed a great success.A.IntroducingB.introducedC.to introduceD.being introduced…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。