—Is he your friend?
—Yes, ________. [ ]
A. it is
B. it isn’t
C. he is
D. he isn’t
答案:C
阻塞性黄疸的原因是()
A.肝细胞阻塞
B.大量红细胞破坏
C.肝细胞膜通透性增大
D.肝内外胆道阻塞
E.肝动脉阻塞
26,35,45,56,68,( )
A.78
B.79
C.76
D.81