题目内容
溃疡穿孔所引发的后果中，最严重的是：
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不完全性大肠上皮化生是指：
qualified for range from ... to reduction in regardless of relating to remind ... of remit money to report on report to resign front responsible for retire from run short of run out of That ______ me ______ a funny thing that once happened to me.
有关食管癌的描述中，哪项是错误的：
It’s essential ______ a visa if you intend ______ the USA.
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