When writing a biography of Napoleon she ______ some unknown facts.

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问题 When writing a biography of Napoleon she ______ some unknown facts.

选项 A、stumbled across
B、stumbled through
C、stumbled at
D、stumbled over

答案A

解析 stumble across无意间发现，偶然发现。stumble through结结巴巴地说话；跌跌撞撞地经历。stumble at踌躇，迟疑。stumble over给…绊倒；结结巴巴地说。

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B类竞赛（英语专业本科专科）

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