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【简答题】
一个3200位长的TCP报到IP层,加上160位的首部后成为数据报。下面的互联网由两个局域网通过路由器连接起来。但第二个局域网所能传送的最长数据帧中的数据部分只有1200位。因此数据报在路由器必须进行分片。试问第二个局域网向其上层要传送多少比特的数据?
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反馈参考答案：
举一反三
【单选题】I’m thinking about going to Germany this summer and I need your advice. You’re the best person I know to answer my questions, you’re German.
A.
after
B.
before
C.
for
D.
unless
【单选题】—Hi, I hear you’re going to London this summer vacation. — , I was going to, but now I have changed my plan.
A.
Previously
B.
Recently
C.
Absolutely
D.
Partly
【简答题】钩藤总碱灌胃给药或者注射可对抗____引起的豚鼠哮喘。
【单选题】On summer nights, I often go to sleep _____ the windows ______. [ ]
A.
with, on
B.
with, open
C.
with, close
D.
let, open
【单选题】---I often go swimming in summer. ________________? ---I often stay at home.
A.
What about you?
B.
How are you?
C.
Who are you
D.
What are you
【单选题】---On summer nights the weather is usually very hot. ---Yes, so I often go to sleep ______ the windows ______.
A.
with, on
B.
have, open
C.
with, open
D.
with, closed
【单选题】---Do you often go swimming in summer? ---No, _________.Swimming is a good kind of sports, but I can’t swim.
A.
sometimes
B.
often
C.
always
D.
never
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