题目

 Chinese smartphone maker Xiaomi Corp said____ it sold 18.7 million smartphones in 2013, up 160 percent year-on-year, and _____ it officially expanded to Singapore ____Jan 1, in a bid to enter the global market.  A. that, that, in                            B. 不填, 不填, on  C. that, 不填, in                           D. 不填, that ,on 答案：D

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