Which of the following advantages of digital currency have not been mentioned in the video?
A: legitimacy
B: security
C: offline transaction
D: reduce costs
A: legitimacy
B: security
C: offline transaction
D: reduce costs
举一反三
- Which of the following festivals have been mentioned in video 7?
- Which of the following company is not mentioned in the video?
- Which of the following abbreviations is mentioned in the video?
- Which of the following advantages of the Internet is not mentioned in Paragraph 1?
- Which of the following advantages of the Internet is mentioned in Paragraph 1 ， Passage2?