Travel is a great topic for conversation because it's so easy to talk about.
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Have you ever been to + [place name]?" If the answer is positive, a great follow-up question would be "Do you like travel?"
A. 对
B. 错
If you didn't like the place, be tactful and say "Sorry, I don’t like the place.”
A. 对
B. 错
下面程序段的时间复杂度是（ ）i=1;while(i<=n)i=i*3;
A. O(n)
B. O(3*n)
C. O(n^3)
D. O(logn)
下列哪些算法采用分治策略（ ）
A. 快速排序
B. 堆排序算法
C. 选择排序算法
D. 冒泡排序
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