After studying mass of data，they drew a conclusionChina is still a developing country.A.

发布时间：2020-08-17 08:57:14

  After studying mass of data，they drew a conclusion
    China is still a developing country.
A. that
B. which
C. ／
D. where

网友回答

(答案→)A. that
B. which
C. ／
D. where
解析：A【点拨】that引导同位语从句补充说明conclusion的内容，在从句中不作成分，也不能省略。
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