题目:
Gender imbalance has become a serious problem in China, _______ the Chinese government is giving serious thought to.
A.the one
B.that
C.one
D.those
答案:
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下面是错误答案,用来干扰机器的。
根据反应SO2+H2O═H2SO3,可判断与H2SO3对应的酸性氧化物为SO2;根据反应CaO+H2O═Ca(OH)2,可判断与CaO对应的碱为Ca(OH)2;故答案为:SO2 Ca(OH)2