治疗具有严重细胞免疫缺陷患儿的重要措施是()
A.保护性隔离
B.采用抗生素作预防性治疗
C.输新鲜血
D.免疫球蛋白替代疗法
E.免疫重建或替代疗法
参考答案:E
胆囊结石病人行胆总管探查术的指征是 (请从以下5个备选答案中选出3个正确选项)
A.有梗阻性黄疸病史
B.术中扪到胆总管内结石
C.术中发现胆总管扩张
D.术中胆总管穿刺抽出清亮胆汁
E.术前B超示胆总管0.8cm
It is hard to __________ the green beans from the red ones, because there are too many of them.[ ]
A. work out
B. watch over
C. sort out
D. set down