The hostess of the party, who ______ as a doctor for five years, is president of a famous private school.

A．worked

B．has worked

C．works

D．had worked

将连续不断的经营过程，人为地划分为若干相等的时段，分段进行结算，分段编制财务会计报告，分段反映单位的财务状况和经营成果，这种分段进行会计核算的时间称为( )。

A．会计期间

B．会计区间

C．会计年度

D．会计时间