以下哪项处理不利于预防术后肺不张
A.术前2周停止吸烟
B.增加术后运动与咳嗽
C.术前呼吸锻炼
D.术后腹部切口捆扎腹带
E.纤维支气管镜吸痰
参考答案:D
下面是家蚕发育过程各阶段的形态图,其先后顺序是
A.①②③④
B.①④②③
C.④③②①
D.②④③①
John __ confidence not only from his teacher’s encouraging words but also from his success this time.
A.came up to
B.acquired
C.promote
D.made out