【单选题】交换机如何知道将帧转发到哪个端口
A.
A:用MAC地址表;B:用ARP地址表;C:读取源ARP地址;D:读取源MAC地址;
B.
A:用MAC地址表;B:用ARP地址表;C:读取源ARP地址;D:读取源MAC地址;
C.
A:用MAC地址表;B:用ARP地址表;C:读取源ARP地址;D:读取源MAC地址;
D.
A:用MAC地址表;B:用ARP地址表;C:读取源ARP地址;D:读取源MAC地址;
【简答题】I' m amazed that the young actress married the photographer so soon, for she __________ him very well. A) won't have known B) can't have known C) shouldn't know D) mustn't know
【单选题】I'm 160cm tall. I'm ___________ than my young brother. [ ]
【单选题】下列关于 Word 2010 文档中页眉与页脚的叙述, ( )是错误的。
【单选题】听力原文: All warm-blooded animals are very helpless at first. Young birds and young bats must be taught to fly. Thousands of young seals drown every year. They never learn to swim 'naturally.' The mother...
A.
They know what to do because of instinct.
B.
They know how to fly naturally.
C.
They often reject their parents.
D.
They learn behavior. from their parents or other animals.
【简答题】看图,选出相对应的句子。 ( ) 1. A. My grandpa is old. B. I'm young. ( ) 2. A. My brother is young. B. My sister is young. ( ) 3. A. We have a big family. B. This is my classroom.
【单选题】听力原文:Young teacher: I'm sorry, I'm late again. The traffic is terrible. Mrs. Wilson: Well, that's OK. But the schoolmaster wants to see you. He asked about you this morning. Young teacher: Oh, that's ...
A.
Do you know what I should say to him?
B.
What shall I say? Maybe you have some idea.
C.
What can I say to him? Any suggestions.
D.
Tell me what I should say to him.