题目

27.Education reform,          the Chinese government attaches great importance,has     attracted a lot of public attention. A.in which                B.to which              C.in that                    D.to that 答案:B某烃的衍生物A,其分子式为C6H12O2.实验表明:A和NaOH溶液共热生成B和C;B和盐酸反应生成有机物D;C在铜催化和加热条件下氧化为E;其中D,E都不发生银镜反应.由此判断A的可能结构有 [  ] A.6种B.4种 C.3种D.2种
英语 试题推荐