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What did Churchill mean when he said, "In the days of Napoleon thesame wind which would have carried his transports across theChannel might have driven away the blockading fleet"?It could never ______________________ that a chance combination of factors favorable to an invasion might come together (the blockading fleet mentioned was the British navy, which was keeping much of the French fleet ________________ in port).

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Was Churchill preparing the British people for a long war or a shot one?How do you know ?A _____________ one. Because he said the war might last for years, the enemy was _________________ of fighting, and the British people might have to fight beach by beach, hill by hill…

函数f定义如下:intf(intk){if(k==1)return1;elsereturnf(k-1)*k;}若执行语句long long int m=f(15);则m的值应为()。

A. 1307674368000
B. 120
C. 一个因溢出int表示范围而产生的数据
D. 479001600

函数f定义如下:intf(intk){if(k==0||k==1)return1;elsereturnf(k-1)+f(k-2);}若执行语句m=f(5);则m的值应为()。

A. 3
B. 8
C. 5
D. 13

已知斐波那契数列为1, 1, 2, 3,5,8,13,21……,则对于在线编程要求斐波那契数列的第n(n<92)项(时限1秒),采用自定义函数的方法求解,以下说法错误的是()

A. 函数返回类型应为long long int
B. 可以使用递归函数求解
C. 使用递归函数将得到“超时”反馈
D. 可以使用迭代法或空间换时间的方法避免超时

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