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【单选题】
以下不是定位技术的是( )。
A.
卫星
B.
蜂窝
C.
网络
D.
RFID
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举一反三
【单选题】在 R2624 路由器发出的 Ping 命令中,"U"代表什么
A.
数据包已经丢失
B.
遇到网络拥塞现象
C.
目的地不能到达
D.
成功地接收到一个回送应答
【单选题】在R2624路由器发出的PING命令中,"U"代表什么?
A.
成功地接收到一个回送应答
B.
数据包已经丢失
C.
遇到网络拥塞现象
D.
目的地不能到达
【单选题】在R2624路由器发出的Ping命令中,“!”代表什么?
A.
数据包已经丢失
B.
遇到网络拥塞现象
C.
目的地不能到达
D.
成功地接受到一个回送应答
【单选题】在R2624路由器发出的Ping 命令中,“!”代表什么?
A.
数据包已经丢失
B.
遇到网络拥塞现象
C.
目的地不能到达
D.
成功地接收到一个回送应答
【单选题】在R2624路由器发出的ping命令中,“!”代表什么?
A.
目的可达,网络通畅
B.
数据包已经丢失
C.
遇到网络堵塞现象
D.
目的地不能到达
【简答题】听下面一段材料,回答第1至3题。 1. Where had Peter and his wife planned to spend this weekend? A. In a hotel. B. In his company. C. At home. 2. Which floor is Peter's office on? A. 8th. B. 10th. C. 12th. 3. What did...
【简答题】C The house where I lived before was near a railway station. I had become so familiar with the sound and sight that I took little interest 1. ________ them. However, when my father decided to take up ...
【单选题】—_____are you going for vacation?、 —I'm going to Australia in March. [     ]
A.
when
B.
When and where
C.
How
D.
Where and when
【单选题】Heredity(遗传) is not the only thing that influences our color. Where we live and how we live after we are born are important too. For instance, our genes influence how fat or thin we are. But our weigh...
A.
exercise
B.
weight
C.
food
D.
sunshine
【简答题】Reading A To Choose an Exhibition Venue Venue finding is probably one of the most important aspects of the development phase of an exhibition. Yet, to find out the most important suitable venue is not...
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