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【简答题】
平均键能可以估算反应热。 H2(g) + C2H4(g) ------ C2H6(g) 查出平均键能,估算该化学反应的反应热。
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【单选题】feature of Bitcoin, a new type of electronic money, that make it attractive as a medium of exchange is
A.
anonymous transactions.
B.
volatility of value.
C.
heavy regulations by the central bank.
D.
wide acceptance by businesses.
【简答题】Given the advantages of electronic money, you might think that we would move quickly to the cashless society in which all payments are made electronically. 1 a true cashless society is probably not ar...
【单选题】A feature of Bitcoin, a new type of electronic money, that make it attractive as a medium of exchange is
A.
anonymous transactions.
B.
volatility of value.
C.
heavy regulations by the central bank.
D.
wide acceptance by businesses.
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