先兆临产可靠的征象是
A．不规律宫缩B．见红C．腰痛D．胎动活跃E．尿中HCG明显增多
参考答案：B
使肾功能不全恶化的常见诱因应除外的是（）
A.感染、发热
B.外伤、出血
C.呕吐伴腹泻
D.血尿酸或血钙过低
E.心力衰竭
I am making water means（）.
A.my vessel is leaking
B.my vessel is producing fresh water
C.my vessel is producing sea water
D.sea water is de-salted on board my vessel
