______ she had a solid background in mathematics, her lab skills were relatively undeveloped.

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问题 ______ she had a solid background in mathematics, her lab skills were relatively undeveloped.

选项 A、As
B、Since
C、That
D、While

答案D

解析 句意:尽管她有很坚实的数学背景,但是她的实验室技能相对来说不够成熟。词义辨析题。as:随着,因为;since:既然,由于;that作连词时无词义,三者皆不合题意。本句中应选while,表示两种情况的对比。所以答案为D。
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