等渗性缺水的病因包括()。
A.高位肠瘘
B.急性弥漫性腹膜炎
C.大面积烧伤48h内
D.大量呕吐
E.急性肠梗阻
参考答案:A, B, C, D, E
— I wonder if you have a single room for tonight.
—Sorry, I’m afraid we have _________at the moment.
A.no
B.none
C.nothing
D.no one
对注射用油质量论述正确的是()
A.碘价越高越好
B.皂化值越高越好
C.酸值越低越好
D.熔点越低越好
E.密度越低越好