题目内容
Which of the following is not a unique feature of e-commerce technology（）
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E-commerce is available just about everywhere and anytime. This is known as（）
All of the following were visions of e-commerce expressed during the early years of e-commerce except（）
The unique features of e-commerce technology include（）
Which of the following refers to any disparity in relevant market information among parties in a transaction（）
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