it is rECommEnDED in thE pAssAgE As A sECurity mEAsurE thAt pEoplE shoulD ______.
A．turn oFF nEtwork sErviCEs
B．Employ A Full-inspECtion FirEwAll
C．mAkE surE thAt sErvErs AnD AppliCAtions ArE ComBinED
D．EliminAtE All thE progrAms