When first ______ to the market, these new products in their company enjoyed a great success.
A．IntroducingB．introducedC．to introduceD．being introduced
B

試題分析：過去分詞done表示與句中主語為邏輯上的動賓關(guān)系，表完成，沒有一定的時(shí)間性。本題中，these new products與introduce之間是動賓關(guān)系，故應(yīng)選B。本句含義，當(dāng)他們公司的這些新產(chǎn)品第一次被介紹到市場上時(shí)，它們就享有很大的成功。
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