服务器的部署是网络规划的重要环节。某单位网络拓扑结构如图4-9_爱下问搜题

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问题单项选择题共用题干题

服务器的部署是网络规划的重要环节。某单位网络拓扑结构如图4-9所示，需要部署VOD服务器、Web服务器、邮件服务器，此外还需要部署流量监控服务器对单位内部网络流量进行监控。VOD服务器应部署在位置（1），Web服务器应部署在位置（2），流量监控服务器应部署在位置（3）。上述服务器中，流出流量最大的是（4），流入流量最大的是（5）。

空白（4）处应选择（）

A.VOD服务器

B.Web服务器

C.流量监控服务器

D.邮件服务器

答案

参考答案：A

完形填空

My First Trip in the United States
I still remember my first day in the U. S. very clearly. My friend was waiting for me when my plane   36 at Kennedy Airport at three o’clock in the afternoon. The weather was very 37 and it was snowing, but I was too excited to   38  . From the airport, my friend and I took a taxi to my    39   .On the way, I saw the skyline of Manhattan for the   40  time and I looked in surprise at the famous skyscrapers（摩天大楼） and their man-made   41  . 42   me unpack at the hotel, my friend left and promised to return the next day.
43  my friend had left, I went to a   44   near the hotel to get something   45    . Since I couldn’t speak a single word of English, I couldn’t tell the    46   what I wanted. I was very worried and started to make some   47   ,but he didn’t understand me. Finally, I ordered the    48  thing as the man at the next table was   49   . After dinner, I started to walk along Broadway   50   I came to Times Square with its theatres, neon lights, and crowds of people. I did not feel tired, so I   51  to walk around the city. I wanted to see   52  on my first day, although I knew it was impossible.
When I returned to the hotel, I couldn’t fall asleep, lay    53  and thought about New York. It was a very big and amazing city with many high-rise buildings and streams of cars, and full of   54  and busy people. I also decided right then that I had to learn to    55  .

D．Being helped

A．Before long

B．Shortly after

C．supermarket

B．suggestions

D．some things

A．drive a car

C．teach Chinese

D．speak English

填空题

在隔离试种期内，由市、区（县）植物保护站负责检疫。经试种观察未发现检疫对象的，准予（）。