We're talking __ the final exam __ the phone. [ ]

A. with, on  

B. to, in  

C. about, on  

D. of, wit

呕血最常见的疾病是

A．消化性溃疡

B．食管静脉曲张破裂出血

C．胃癌

D．急性胃粘膜病变

E．急性出血性胃炎