胃大部切除术治疗溃疡病的理论依据是
A.切除了大部分胃体,使胃酸分泌减少
B.切除了胃窦消除了胃泌素引起的胃酸分泌
C.切除了溃疡好发部位
D.切除了溃疡本身
参考答案:A,B,C,D
---I’m going to Hangzhou for a holiday this weekend.
--- ___ you are there, could you buy me some green tea?
A.Because
B.While
C.During
D.As