Which of the following descriptions of e-commerce and traditional commerce is not true?
A. The logistics and distribution methods of e-commerce are different from those of traditional commerce.
B. E-commerce activities can not be limited by time and space, while traditional commerce can not do this.
C. E-commerce can more easily realize the differentiation of customers' personalities and put ads in a targeted way.
D. E-commerce must sign a written contract and issue machine-printed invoices, otherwise it will be invalid.
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Which of the following types of e-commerce is not classified according to the network types used by enterprises to carry out e-commerce?
A. Extranet e-commerce
B. Internet e-commerce
C. Ethernet e-commerce
D. Intranet e-commerce
The type of the famous domestic e-commerce platform "Jingdong" is________.
A. B2B
B2C
C2C
D. B2G
In the following descriptions of the characteristics of e-commerce, which one is not true?
A. Modernization
B. Virtualization
C. Informatization
D. Scalability
E. Globalization
From the following answer choices, pick the statement that is not correct description of development trend of supply chain management ( ).
A. Global supply chain enables the acquisition of production resources and information resources and other functions in the supply chain to be carried out on A global scale
B. The goal of the green supply chain is to achieve the minimum impact on the environment and the highest utilization of resources
C. The purpose of an agile supply chain is to achieve an agile response to changing customer needs
D. Closed-loop supply chain can save resources and reduce waste emissions to the greatest extent
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