onE oF thE grEAt ChAngEs Brought ABout By thE knowlEDgE soCiEty is thAt ______.
A．thE DiFFErEnCE BEtwEEn thE EmployEE AnD thE EmployEr BAs BEComE insigniFiCAnt
B．pEoplE's trADitionAl ConCEpts ABout work no longEr holD truE
C．most pEoplE hAvE to tAkE pArt-timE joBs
D．pEoplE hAvE to ChAngE thEir joBs From timE to timE