＿＿several times, the young scientist still kept on making his experiments. A.Having been failed B.——青夏教育精英家教网—

摘要：＿＿several times, the young scientist still kept on making his experiments. A.Having been failed B.Having failed C.Though failed D.Because of failure

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＿＿several times, the young scientist still kept on making his experiments.

　　A.Having been failed B.Having failed

　　C.Though failed D.Because of failure

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＿＿several times, the young scientist still kept on making his experiments.

　　A.Having been failed B.Having failed　 C.Though failed D.Because of failure

查看习题详情和答案>>

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