皮革状胃
参考答案：皮革状胃：胃癌组织如累积整个胃，使胃变成一固定而不能扩张的小胃，称皮革状胃。
— Can you speak Chinese?
— Yes, I can. I _____ China for several years.
A. have been in B. have been to C. have gone to
后勤管理体制改革的必要性是什么？
