应当永久保管的会计档案资料是( )
A．月度财务会计报告
B．会计档案销毁清册
C．银行存款余额调节表
D．现金日记账
参考答案：B
—What about having a picnic?
—Good idea. And don't forget ______something to eat. [ ]
A. to bring
B. bring
C. bringing
D. brings
电泳槽中混入了油可通过在电泳槽循环系统中增设脱脂过滤袋去除。( )
