【简答题】网络地址转换( NAT )被广泛应用于各种类型 Internet 接入方式和各种类型的网络中。 NAT 的实现方式有三种,即静态转换、 _______________ 和端口多路复用。
【单选题】听力原文:W: Yesterday I met Mike in the street. M: It's impossible. He left for London the day before yesterday and hasn't come back yet. What are they probably talking about?
【单选题】Which sentence is wrong? [ ]
A.
I felt it impossible for him to take the exam.
B.
I found it impossible that he might take the exam.
C.
I thought that he might not take the exam.
D.
In my opinion he might take the exam.
【简答题】NAT的实现方式有三种,( )、( )、( )。
【单选题】I think it’s impossible for _______ people to do _______work in ________a short time.
D.
such many;so little;so