长期以来困扰基层基础建设的主要问题有()
A.底数不清
B.信息不灵
C.基础工作不扎实
D.基层力量薄弱分散
E.体制机制相对滞后
参考答案:A, B, C, D, E
Just like orders, invoices can be sent electronically. EDI invoices have similar advantages to EDI orders in ______ time and avoided errors.
A.killing B.increase C.procrastinate D.saved
次生矿物