問題文
A committee that has read the closing chapter of the public overview puts two questions to it: what is new about a ledger of this sort, and what the earliest uses of it, which were systems of electronic cash, put in place. What is new about it, and what did those earliest uses put in place?
選択肢
- What is new about it is the part it had to invent for itself, and what those earliest uses put in place was one record of every pair, open to both.
- What is new about it is the manner of putting older parts to use, and what those earliest uses put in place was one record of every dealing, open to everyone.
- What is new about it is the manner of putting older parts to use, and what those earliest uses put in place was one record of every pair, open to both.
- What is new about it is the part it had to invent for itself, and what those earliest uses put in place was one record of every dealing, open to everyone.