电子数据交换的简称是()
A.EFT
B.EDI
C.NET
D.EC
参考答案:B
The old man always________ the clothes from ________century.
A.puts on, the twenties
B.has, twenties
C.dresses, the twentieth
D.wears, the twentieth
碎屑岩的填隙物包括杂基和胶结物。