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举一反三
【单选题】如已确诊为直肠癌，并采用结肠造瘘的手术方法，术后二天内应特别注意
A.
维护造瘘口皮肤清洁
B.
观察引流物的颜色，量，性质
C.
观察造瘘口处血运情况
D.
血象变化
E.
生命体征变化
【单选题】Food and Health The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has at the same time, made many foods unfit to...
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】药物在生物膜一侧形成离子障时，说明 ：
A.
离子型药物易跨膜，不易留在膜一侧
B.
非离子型药物易跨膜，离子型药物不易跨膜
C.
离子型和非离子型药物都易跨膜
D.
离子型和非离子型药物都不易跨膜
E.
非离子型药物不易跨膜，易留在膜一侧