• 2022-05-29
    写出下列化合物与[tex=2.214x1.0]Befsn3ugGBTk6Sdx/55UlQ==[/tex]溴加成所得产物。[tex=16.214x1.214]97d2jAhPcSBQP+yHCJD8FZLAmpWBZ/8LeBo2RQj+NvbXAC8Dl4wkdmCzMgvUZC5c[/tex]