曾经发出“无武力之国家，必至于灭亡”的感慨的是（）。
A.曹操
B.林则徐
C.孙中山
参考答案：C
-Why not have a new machine designed?
-_______ . I'll have someone do it soon. [ ]
A. I don't think so
B. I'm not sure
C. It's up to you
D. Sounds like a good idea
胃溃疡病人出现下列哪种情况考虑并发胃癌。（）
A.进食后疼痛
B.疼痛较前减轻
C.疼痛规律消失
D.疼痛程度不变
E.出现大便潜血阳性
