At the Berezina River, the Russians nearly trapped the retreating French by burning the bridges over the swollen river. But Napoleon, by ( ), was able to build two new bridges. ( 章节：1 难度：2)
- A、a bit of luck
- B、a time of luck
- C、a little of luck
- D、a stroke of luck
正确答案:D
答案解析:有
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