临床上不出现发绀的疾病是（）。
A.急性肺炎
B.慢性阻塞性肺气肿
C.自发性气胸
D.严重贫血
E.右心衰
参考答案：D
患者，女性，45岁，胆道手术后，T形管引流已2周，医生欲给予拔管，拔管前先试行夹管1～2d，在这期间护士应注意观察的内容是
A．腹膜刺激征B．腹痛、发热、黄疸C．尿液的颜色D．引流口有无渗液E．神志、血压和脉搏
— David will win the first prize?-Are you sure?
— ________.He's always working hard. [ ]
A. It's my guess
B. It's up to you
C. That depends
D. It's hard to say
