胃扭转的X线表现是（）
A.幽门高于十二指肠球部，胃呈蜷虾状
B.胃呈瀑布状
C.膈上见B环
D.大弯侧呈弧形压迹，胃向左移
E.葫芦状胃
参考答案：A
—These problems are too hard to ______. Will you give me some advice?
—There are many ways, but the most important is to have a careful plan. [ ]
A. work out
B. look out
C. hand out
D. put out
能杀灭结核菌的药物是
A．对氨基水杨酸钠B．乙胺丁醇C．两者均是D．两者均非
