胎粪吸入性肺炎的基础病理生理改变是（）
A.低氧血症
B.高碳酸血症
C.代谢性酸中毒
D.混合性酸中毒
E.毒血症
参考答案：A, D
房颤病人在用洋地黄后，心律突然变齐，较小可能为
A.恢复窦性心律
B.室上性心动过速，2:1传导阻滞
C.非阵发性交界区心动过速
D.III度房室传导阻滞
E.房扑
He was fined $ 5,000 by city regulators for giving money to an inspector, an incident he later described as ______.
A. extent B. extinction C. extortion D. extravagance
