介质损失角tgQ的实测值为负值时,说明被测设备根本没有介质损失。()
参考答案:错
-I’ll come to see you this afternoon. Shall I bring something to read?
--OK, _________.
A.you are welcome
B.by no means
C.take your time
D.so much the better
下列哪项易导致低渗性脱水()。
A.大量出汗
B.急性肠梗阻
C.弥漫性腹膜炎
D.急性腹泻
E.应用大量噻嗪类利尿药、利尿酸或速尿