食管癌根治性切除后,用胃代食管时,保留用于游离胃供血管的最常用血管是()
A.胃短动静脉
B.胃左动静脉
C.胃网膜右动静脉
D.胃右动静脉
E.胃网膜左动静脉
参考答案:C
案件专项治理工作要做到“三个坚持”、“四个目标”,指的是什么?
(68) refers to the parts of the computer that you can ,see and touch. It is used for the purpose of (69) .
A.input
B.output
C.central processing
D.all of the above