The time right after birth is of great importance because it is a period when _____.
A. the baby can hear the mother's heartbeat
B. the baby produces a stimulus which the mother response to
C. the baby is separated from the mother
D. the mother's instinctive tendency to hold the baby on the left is brought out
查看答案
HLA-Ⅱ类分子抗原肽结合区具有的特征是( )
A. 引起器官移植排斥反应
B. 能与抗原肽结合形成复合物,被TH细胞识别
C. 可接纳8~10个氨基酸残基
D. 决定HLA-Ⅱ类分子的多态性
E. 是同种异型抗原决定簇的存在部位
If too many of these rare animals are killed, their kind will _______.
A. die away
B. die down
C. die out
D. die from
患者女性,34岁,不明原因牙龈渗血及月经量增多3个月,诊断为特发性血小板减少性紫癜。不支持该诊断的检查是
A. 血小板计数减少
B. 血小板相关免疫球蛋白增高
C. 出血时间正常
D. 血小板寿命缩短
E. 血块回缩不良
某放疗患者,局部照射皮肤出现水肿、糜烂、渗出。可使用
A. 0.2%薄荷淀粉
B. 2%甲紫
C. 2.5%碘酊
D. 75%乙醇
E. 3%过氧化氢