whiCh oF thE Following stAtEmEnts is truE ACCorDing to thE pAssAgE
A．mAny FiElDs oF sCiEnCE AnD tEChnology ArE now using CAD AnD CAm.
B．high tEChnology is nothing But A nEw typE oF tEAmwork plus CAD AnD CAm.
C．thE Author givEs somE DEtAils in thE pAssAgE ABout BArriErs BEtwEEn trADitionAl DEsign AnD mAnuFACturing FunCtion.
D．ExpErts From DiFFErEnt FiElDs hAvE to CoopErAtE to DEvElop A proDuCt From ConCEpt to proDuCtion.