慢性支气管炎合并慢性阻塞性肺气肿早期可出现
A. 氧分压降低
B. 二氧化碳分压升高
C. 呼吸性碱中毒
D. 呼吸性酸中毒
E. 代谢性碱中毒
慢性阻塞性肺疾病呼酸时,可以使用哪些药物
A. 氨丁三醇THAM
B. 糖皮质激素
C. 呼吸兴奋剂
D. 巴比妥类药物
E. 血管活性药物
1
A.There is no paper.
B.The man can use the printer.
C.The man has to pay first.
D.The printer doesn't work.
2
A.He has got a pay rise.
B.He has got a new job.
C.He has been promoted.
D.He has bought an apartment.