【简答题】A blind boy sat there with a hat by his feet. He held up a sign which said, “I am blind, please help.” There were only a few coins in the hat. A man was walking by. He took out a few coins and dropped...
【简答题】某烃A(C 4 H 8 ),在较低温度下与氯气作用生成B(C 4 H 8 Cl 2 );在较高温度下作用则生成C(C 4 H 7 Cl)。C与NaOH水溶液作用生成D(C 4 H 7 OH),但与NaOH醇溶液作用却生成E(C 4 H 6 )。E与顺丁烯二酸酐反应生成F(C 8 H 8 O 3 )。试推断A~F的构造。