下述疾病中发生呼吸衰竭时,吸氧后氧分压改善明显,最可能的情况是()
A.COPD
B.左心衰竭
C.ARDS
D.大叶性肺炎
E.肺不张
参考答案:A
如果出现下列哪项化验结果提示病变严重
A.血淀粉酶1 256温氏单位
B.尿淀粉酶大于1 024温氏单位
C.血WBC 12×109/L
D.血清脂肪酶1.5康氏单位
E.血钙0.8mmol/L
My parents expected too much of me. When they heard that I had failed in the college entrance
examination, they almost ____. [ ]
A. broke up
B. broke off
C. broke out
D. broke down