— I hope the result of the exams had not been told to us.

— ________, why did you come here to see our teacher?[      ]

A. If what         

B. If so            

C. If only          

D. If not

能用于细菌内毒素检查的方法是（）

A、鲎试验法

B、气泡点法

C、超滤法

D、吸附法

E、反渗透法