澳大利亚的东水西调,以色列的北水南调,我国的南水北调,都是为了解决水资源的()
A.时间分配不均
B.空间分布不均
C.过剩问题
D.质量
参考答案:B
简要说明在物流E通业务的派送流程。
There's no light oil ,Jackie and his family be at home. [ ]
A. oughtn't to
B. mustn't
C. needn't
D. can't