白喉的微生物学检验，应采集的标本是

A．患者血液镜检和培养

B．患者尿液镜检和培养

C．患者痰液镜检和培养

D．患者大便镜检和培养

E．伪膜边缘的分泌物镜检和培养

-Have you ____ some new ideas?    

-Yeah. I'll tell you later.    [ ]

A. come about                        

B. come into    

C. comp up with                      

D. come out with