哪些情况应及早或定期进行胃部检查，以排除胃癌？
参考答案：
（1）40岁以上，尤其男性，近期出现胃部不适、疼痛或呕血、黑便者；
（2）良性溃疡但最大刺激胃酸分泌实验缺酸者；
（3）慢性萎缩性胃炎伴肠化及不典型增生者；
（4）胃溃疡经内科治疗2个月溃疡反而增大者；
（5）较大的胃息肉者，应做活体组织检查；
（6）胃切除术后15年以上，应每年定期随访。
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| A professor (教授) told his students to go into the city slums (贫民窟) to study the life of 200 boys. He asked them to 1 reports about each boy's life and future. One of the students wrote, "They don't have any hope." Twenty-five years 2 , another professor read about the earlier study. He told his students to 3 what had happened to the boys. They tried very hard and found that 176 of the boys had become successful 4 doctors, teachers and scientists. The professor was very 5 and decided to study it further. Luckily, all of them were living near the place and he was able to ask each one, "What made you 6 ?" Each one answered, "It was a teacher." The teacher was 7 living there, so the professor found her and asked the old woman 8 she had done to pull those boys out of the slums, and change them 9 successful people. The teacher's 10 began to shine and said with a sweet smile, "It's really very easy. I love those boys." | ||||
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