题目

读句子,将下列句子连成一段完整的对话。(______) Helen Keller is a famous writer.(______) That’s amazing.(______) Why is she so famous?(______) She is famous for writing a lot of books. 答案:【答案】1 4 2 3 【解析】略久置于空气中的下列物质,因被氧化而呈黄色的是 A.浓硝酸                                B.氯化亚铁溶液 C.溴苯                              D.溴化银
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