A-A+
When writing a biography of Napoleon she _____
问题详情
When writing a biography of Napoleon she ______ some unknown facts.
A．stumbled across
B．stumbled through
C．stumbled at
D．stumbled over请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：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。
