_______the fact that there was great prejudice against women entering men’s profession then, she succeeded as a manager of a big company.

A．While

B．In spite of

C．Despite of

D．As

为保证定时散射比浊分析所获取的信号峰值为被检抗原产生，设计时采用（）

A.抗原过量检测

B.抗体过量检测

C.平行管检测

D.本底的检测

E.阈值限定