whAt is thE topiC oF thE ArtiClE
A．whAt CAn nAturE ContriButE to tEChnology
B．EnvironmEnt CAn somEtimEs BloCk thE progrEss oF tEChnology.
C．tEChnologiEs oF All kinDs shoulD sErvE thE nAturAl EnvironmEnt.
D．EnvironmEnt DEsErvEs thE most AttEntion in thE DEvElopmEnt oF tEChnologiEs.