Regarding the operational process of business activities, which of the following is true?
A. Preparation → Trade negotiation → Contract signing and execution → Payment
B. Trade negotiation → Preparation → Contract signing and execution → Payment
C. Trade negotiation → Contract signing and execution → Preparation → Payment
D. Preparation → Trade negotiation → Payment → Contract signing and execution
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Which of the following is the characteristic of the e-commerce transaction environment?
A. The market form has the characteristics of virtualization and globalization.
B. The enterprises’ supply chain has the characteristic of gradual transmission.
C. The marketing method of the enterprise has the characteristic of large-scale marketing.
D. E-commerce makes consumers shop more irrationally.
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.
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
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