{{B}}pAssAgE two quEstions 29 to 31 ArE BAsED on thE pAssAgE you hAvE just hEArD、{{/B}}

A．to tEll whAt "high tECh" AnD "stAtE oF thE Art" ArE.
B．to tEll how "high tECh" AnD "stAtE oF thE Art" hAvE DEvElopED、
C．to givE ExAmplEs oF high tECh.
D．to DEsCriBE thE moDErn tEChnology.