钩体病人后发热的原因是()
A.再燃
B.复发
C.继发感染
D.变态反应
E.体温调节中枢功能紊乱
参考答案:D
Of the two lectures, the first was by far _____, partly because the speaker had such a dynamic style.
A.the best
B.better
C.the better
D.much better
免疫放射分析中标记物的使用为().
A.核素标记抗原
B.核素标记抗体
C.限量
D.等量
E.过量