Which of the following treatment methods is correct for the waste liquid produced by the experiments?

A、Allwasteliquidcanbepouredintothesamewasteliquidcollectionbottle.;
B、Dilutewithwaterandpourintothesewer.;
C、Thewasteliquidintheexperimentmustberecoveredanddisposedaccordingtouniformrequirements.;
D、Draindirectlyintothesewer.