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【多选题】
关于 UDP协议通信的特点,下列说法正确的是:( )。
A.
UDP是一种无连接的传输层协议，提供面向事务的简单不可靠信息传送服务。
B.
它在通信两端各建立一个socket，在单方面向对方发送数据，不检查发送结果，类似于日常生活中的收发信件。
C.
基于UDP协议的通信使用DatagramSocket类的receive和send方法即可
D.
发送和接收的消息需要均通过一个类DatagramPacket封装数据。
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【单选题】In the figure above, what is the value of 2s-r?
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60
B.
70
C.
100
D.
140
E.
220
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【简答题】(Short-answer Question)Determine the bit sequence represented by the waveform in Figure below. A bit time is 1 μs in this case. What is the total serial transfer time for the eight bits in Figure belo...
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【单选题】What does the figure 0.2% in Paragraph 1 indicate?
A.
America's economic recovery is still shaky.
B.
Economists are disappointed at the future economy.
C.
It is a bad sign for America's economic recovery.
D.
The biggest obstacle to healthier economic performance is political.
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【单选题】The figure above shows the foreign exchange market. D£ is the demand curve for pounds. S£ (Spring-summer) and S£ (Autumn-winter) are the supply curves of pounds during the spring-summer and autumn-win...
A.
3 billion pounds.
B.
3 billion dollars.
C.
6 billion dollars.
D.
20 billion pounds.
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【单选题】The figure above shows the foreign exchange market. D£ is the demand curve for pounds. S£ (Spring-summer) and S£ (Autumn-winter) are the supply curves of pounds during the spring-summer and autumn-win...
A.
3 billion pounds
B.
3 billion dollars
C.
6 billion dollars
D.
10 billion pounds
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【单选题】首次在现代意义上使用经济法概念的是( )
A.
《世界经济年鉴》
B.
《煤炭经济法》
C.
《谢尔曼法》
D.
《自然法典》
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【单选题】Refer to the figure below when answering the next two questions (11 and 12). P and R mark the highest and Q the lowest positions of a 50.0-kg boy swinging as illustrated in the following figure. What ...
A.
2.5 m/s
B.
7.5 m/s
C.
10.0 m/s
D.
12.5 m/s
E.
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【判断题】棒香是用细竹棍或细木棍做芯子的香
A.
正确
B.
错误
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【单选题】What is the wind speed in the following figure?
A.
9~12m/s
B.
11~12m/s
C.
12m /s
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【单选题】2014年产业集聚区规模以上工业主营业务收入对全省规模以上工业主营业务收入增长的贡献率为
A.
73.1%
B.
83.1%
C.
53.1%
D.
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相关题目：
【单选题】In the figure above, what is the value of 2s-r?
A.
60
B.
70
C.
100
D.
140
E.
220
查看完整题目与答案
【简答题】(Short-answer Question)Determine the bit sequence represented by the waveform in Figure below. A bit time is 1 μs in this case. What is the total serial transfer time for the eight bits in Figure belo...
查看完整题目与答案
【单选题】What does the figure 0.2% in Paragraph 1 indicate?
A.
America's economic recovery is still shaky.
B.
Economists are disappointed at the future economy.
C.
It is a bad sign for America's economic recovery.
D.
The biggest obstacle to healthier economic performance is political.
查看完整题目与答案
【单选题】The figure above shows the foreign exchange market. D£ is the demand curve for pounds. S£ (Spring-summer) and S£ (Autumn-winter) are the supply curves of pounds during the spring-summer and autumn-win...
A.
3 billion pounds.
B.
3 billion dollars.
C.
6 billion dollars.
D.
20 billion pounds.
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【单选题】The figure above shows the foreign exchange market. D£ is the demand curve for pounds. S£ (Spring-summer) and S£ (Autumn-winter) are the supply curves of pounds during the spring-summer and autumn-win...
A.
3 billion pounds
B.
3 billion dollars
C.
6 billion dollars
D.
10 billion pounds
查看完整题目与答案
【单选题】首次在现代意义上使用经济法概念的是( )
A.
《世界经济年鉴》
B.
《煤炭经济法》
C.
《谢尔曼法》
D.
《自然法典》
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【单选题】Refer to the figure below when answering the next two questions (11 and 12). P and R mark the highest and Q the lowest positions of a 50.0-kg boy swinging as illustrated in the following figure. What ...
A.
2.5 m/s
B.
7.5 m/s
C.
10.0 m/s
D.
12.5 m/s
E.
None of the above
查看完整题目与答案
【判断题】棒香是用细竹棍或细木棍做芯子的香
A.
正确
B.
错误
查看完整题目与答案
【单选题】What is the wind speed in the following figure?
A.
9~12m/s
B.
11~12m/s
C.
12m /s
查看完整题目与答案
【单选题】2014年产业集聚区规模以上工业主营业务收入对全省规模以上工业主营业务收入增长的贡献率为
A.
73.1%
B.
83.1%
C.
53.1%
D.
63.1%
查看完整题目与答案