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题目内容
（新疆广播电视大学-大学英语（二））
(1)、Why we can exist today and make progress in civilization is because of ___ .
Aour ability to learn.
Bour curiosity.
Cour progress.
Dour intelligence.
Aour ability to learn.
Bour curiosity.
Cour progress.
Dour intelligence.
参考答案
