
S2REN 练习1
Authored by T-HEONG HO
Computers
8th Grade
Used 1+ times

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10 questions
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1.
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2 mins • 1 pt
1. 电子商务的特点有多少种?
2.
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2 mins • 1 pt
2. _________由政府成立的网站,主旨为了提高政府对人民的传递系统。
3.
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2 mins • 1 pt
3. 常见的电子交易的安全机制有多少种?
4.
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2 mins • 1 pt
4. _________指连续性的数据,如人们说话的声音和音乐等 。
5.
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2 mins • 1 pt
5. __________指非连续性的数据,如闪灭的灯号或数字等
6.
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2 mins • 1 pt
6. __________就是数据通过电脑装置所产生讯号在通讯通道如电缆线、光纤或微波在空气中传输处理的过程 。
7.
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2 mins • 1 pt
7. ________发送端只能发送讯息出去;接收端只能接收讯息,不能发送讯息出去。如电视广播及电台广播等 。
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