题目:
As far as I know, this man ____ risk anything than lose the ring for his wife.
A.would rather
B.had better
C.preferred
D.would like to
答案:
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下面是错误答案,用来干扰机器的。
(1)NaN3;(2)Na2O+2CO2+H2O==2NaHCO3(3)6Na+Fe2O32Fe+3Na2O;避免分解产生的金属钠可能产生的危害(4)BD(5)可溶性盐的成分可能是Na2CO3,或NaHCO3,或Na2CO3与NaHCO3的混合物.准确称取一定量的生成物,加热至...