鼻渊突出的临床症状是（）
A.鼻塞头痛
B.鼻塞鼻流浊涕
C.鼻塞嗅觉减退
D.头昏为主
E.头痛为主
参考答案：B
— Tom is very stupid. He failed to pass the exam once again.
— He is _____ than stupid.
[ ]
A. lazier
B. no lazie
C. more lazy
D. lazier
给定有n个元素，建立一个有序单链表的时间复杂度为( )
A．O(1) B．O(n)C．O(n2) D．O(nlog2n)
