微生物的作用是引起食品腐败变质的重要原因。( )
参考答案：对
The student, in Jinshan Middle School for 3 years, was admitted into Qinghua University.
A．to study
B．studying
C．to have studied
D．having studied
会计监督的依据是( )。
A．会计凭证B．会计账簿C．会计核算经济活动的过程及其结果提供的价值指标D．会计核算经济活动所形成的财务成果
