Leggo che qualche persona di scarsa cultura usa a sproposito l'acronimo CDO probablmente equivocandolo con CVD = come volevasi dimostrare.
Eccoi quello che può signofcare CDO:
http://en.globalacronyms.com/cdo
CDO: Significato dell'acronimo
Centre de Documentation en Ophtalomologie
Cadmium Oxide
Centrelink Disability Officer
Chief Dental Officer
Civil Defense Organization
Collaboration Data Objects
Collateralized Debt Obligation
Command Duty Officer
Common Data Objects
Community Dial Office
Computation for Design and Optimization
Controlled Decomposition/oxidation
Counter District Office
Country Desk Officer