Q: Where do they eat their meals?
At home.
B. At the local restaurant.
C. In the college cafeteria.
D. At a hotel.
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Q: According the speakers, what is the best part of going to college?
A. Doing things with other students.
B. Studying for tests.
C. Attending their classes.
D. Meeting many teachers.
这句话是什么意思？
A. 你好
B. 晚安
C. 再见
D. 你还好吗？
设二叉排序树中有n个结点，则在二叉排序树的平均平均查找长度为_________。
A. O(1)
B. O(log2n)
C. O(n)
D. O(n2)
下列四种排序中____算法的空间复杂度最大。
A. 插入排序
B. 冒泡排序
C. 堆排序
D. 归并排序
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