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Before the 1960s, scientists doubted complex molecules could exist in interstellar space because of intense radiation that tears chemical bonds apart. Since then, however, more than 200 chemical compounds, from ammonia to "Buckyball" - a conglomeration of 60 carbon atoms in the shape of a soccer ball - have been found in space.
Because the scope of using the private chain is very limited, when we say "license chain", we usually refer to the alliance chain. Sometimes blockchain is also called "distributed ledger", which weakens the technical characteristics of "block" and "chain", focusing more on the application scenarios.
Beijing municipal government agencies have been moving their offices to Tongzhou since the end of 2017.
Because the allegations in Times article were so serious, perhaps it was prudent for Amazon to take time a deep breath and do some research before fully articulating its position.
Beijing aims to achieve citywide electronic fee collection for on-street parking by the end of this year.
来源：资阳报