低渗性缺水常见的原因是
A．急性肠梗阻B．感染性休克C．肺炎高热D．慢性十二指肠瘘E．急性肾功能衰竭
参考答案：D
—Why were you late for the meeting this morning?
—I got up too late, so I _____ the first bus. [ ]
A. caught
B. missed
C. took
D. forgot
物流服务管理以客户满意为最终目标，其本质是（）。
A.降低物流成本
B.提高物流效率
C.增加企业利润
D.满足客户需求
