患者，男性，28岁，右颈上部淋巴结结核，下列何种药物对此患者治疗无效（）
A.青霉素
B.链霉素
C.利福平
D.异烟肼
E.乙胺丁醇
参考答案：A
—Why isn't Lucy here with you?
—Her mother's ill and she has to ______ her little sister at home.[ ]
A. look after
B. look at
C. look around
D. look for
患者一日尿量在4000毫升以上，尿比重为1.028，下列哪种情况的可能性最大（）
A.尿崩症
B.慢性肾小球肾炎
C.糖尿病
D.服利尿药的作用
E.大量饮水后
