预防急性肺不张,不必要的是()
A.术前禁烟
B.急性呼吸道感染者延期一周手术
C.老慢支病人应行体位引流
D.术中应打开叹气呼吸
E.支气管冲洗
参考答案:E
Had you listened to the doctor, you _______ all right now. [ ]
A. are
B. would be
C. were
D. would have been
对各级各类学校培养人的质量规格进行总体设计的是()。
A.教育目的
B.教育方针
C.教育目标
D.教养规格