抗体检测的灵敏度主要取决于()。
A.抗体检测的方法
B.反应中所用抗原的种类
C.抗体的检测量
D.抗体的检测种类
E.抗体的检测时间
参考答案:A
The hero's story _____ differently in the newspapers. [ ]
A. was reported
B. was reporting
C. reports
D. reported
He decided to the conference in person.
A.participate
B.take part
C.attend
D.join