属于医学伦理学基本原则的是
A.有利、公正B.权利、义务C.廉洁奉公D.医乃仁术E.等价交换
参考答案:A
I sight of an empty seat at the back of the bus and went directly there.
A.lost
B.caught
C.looked
D.took
迟发型皮内试验出现红肿、硬结、水疱为().
A.无反应(-)
B.弱阳性(+)
C.阳性(++)
D.强阳性(+++)
E.强阳性(++++)