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聚甲基丙烯酸酯纤维具有质轻、频率宽等特性，广泛用于制作光导纤维。已知A为某种聚甲基丙烯酸酯纤维的单体，其转化关系如下： 请回答下列问题： （1）由B转化为C的反应类型为_____________， （2）F含有的官能团名称为 ，简述检验该官能团的化学方法 （3）A的结构______________________________________________________ （4）写出反应C→D的化学方程式：______________________________________。 （5）写出满足下列条件的B的链状同分异构体的结构：___________________________。 ①能与NaOH溶液反应 ②能发生反应
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【简答题】Repairs by mail
【简答题】Register(注册) in person Register by phone Register by mail 1781 N. Winchester ST. Call 2 8833 Use form given Chicago Basic Photography This is an eight-hour course for beginners who want to learn ho...
【简答题】Mail order is a term which describes the buying of goods or services by mail delivery（邮递）. The buyer places an order for the desired products with the salesman through some remote method such as throu...
【简答题】Register in person Use form given Register by phone Call 2-8833 Register by mail 178Nchicago Basic Photography This is an eight-hour course for beginners who want to learn how to use a 35 mm camera....
【简答题】The first national retail corporations were built by mail-order companies like Sears inthe late 19th century. 查看材料
【单选题】Register(注册) in person Register by phone Register by mail 178IN. Winchester St. Call 264-8833 Use form. given Chicago Basic Photography This is an eight-hour course for beginners who want to learn how...
A.
spiritual
B.
journalist
C.
professor
D.
experienced
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