临床上最常见的慢性呼吸衰竭病因是
A.重症肺结核
B.呼吸肌病变
C.严重胸廓畸形
D.慢性阻塞性肺疾病
E.神经系统病变
参考答案:D
对于丈夫患有生殖细胞不发育症的不孕夫妇可选择的治疗为()
A.常规IVF-ET
B.ICSI
C.PGD
D.AID
E.AIH
What _______ the foreign experts most is that the new factory is perfectly environment-friendly.[ ]
A. terrifies
B. reminds
C. forgives
D. impresses