下列哪一项不属于ELISA测定方法中所必需的试剂()
A.固相的抗原或抗体
B.酶标记的抗原或抗体
C.酶作用的底物
D.戊二醛交联剂
E.终止剂
参考答案:D
视网膜脱离是指视网膜的()与()的分离。
Billy Crystal hosted the Academy Awards again this year, and his talks always ________
the expectation of most audience.[ ]
A. put up with
B. end up with
C. live up to
D. add up to