临床最常见的等渗性脱水的原因是()
A.水分摄入不足
B.水分丢失过多
C.补充等渗溶液过多
D.消化液的急性丧失
E.消化液长期慢性丢失
参考答案:D
_____ his father came back from work_____ his homework.
A.Not until; he did
B.It wasn't until; when he did
C.It was until; that he didn't do
D.It wasn't until; that he did
物流信息编码对象的种类越多,在程序中的数据提取越复杂,需要的空问越火,时间也越长。因此,在编码设计的开始,首先要确定需要编码的()。
A.模型
B.对象
C.方法
D.层次