The elderly should _________ politely. Also, they must ___________ well.

A．speak, take care of

B．be spoken, be taken care

C．be spoken to, be looked after

D．be spoken to, be taken care of

会计科目是设置会计账户依据，是会计账户的名称。因此，会计科目与会计账户一样具有一定的结构，用于反映会计要素的增减变动情况和结果。（）