国有邮政、电信企业的邮票、邮单、话务、电报收据属于行业发票。_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题判断题

国有邮政、电信企业的邮票、邮单、话务、电报收据属于行业发票。( )

答案

参考答案：错

补全对话，情景问答

把下列对话用线连起来。

1. Has Mr. Li ever been to Hong Kong?
2. Have you ever traveled by ship?
3. Have they ever been to the moon?
4. Has Gina ever been to the USA?
5. Have you ever gone surfing?

A. No, but they’d like to go one day.
B. No, I haven’t.
C. Of course! She comes from America.
D. Yes, he has been there several times.
E. No, I’ve only traveled by train .

单项选择题

从一个具有n个结点的单链表中查找其值等于k的结点时，在查找成功的情况下，需平均比较 ______个结点。

A．n

B．n/2

C．(n-1)/2

D．(n+1)/2