3个月小儿。母乳喂养，腹泻2个月，大便3～4次／日。糊状，无黏液脓血。精神食欲好。多种药物治疗无效。诊断为（）
A.霉菌性肠炎
B.病毒性肠炎
C.大肠杆菌肠炎
D.生理性腹泻
E.迁延性腹泻
参考答案：D
解析：该病例中的患儿没有粪便形状的病理性改变及其他感染中毒的表现，仅大便次数增多，因此，应该排除感染性的选项。迁延性腹泻首先应该满足时间大于3个月，因此也排除。生理性腹泻一般常见于母乳喂养的婴儿，大多发生在6个月以内。除大便次数增多外，无其他症状，食欲好，不影响生长发育。故选D。考点：小儿腹泻病的诊断
完形填空 (共15小题；每小题l分，计15分) Once upon a time, there were two fishermen who were good at fishing. One day they went to a lake to 1 . One of them 2 fishing alone by himself 3 the other was an outgoing person who loved to 4 friends with different people. When he found that some tourists at the lake couldn’t catch any fish. “I will teach you how to do that” he said to them. “If you catch 10 fish, give me one. If you don’t get 10, you 5 give me anything.” They feel like old friends at first sight. Both sides come to an a (an) 6 immediately. After he finished teaching a group, he went to teach another, and 7 taught them some fishing skills. He asked one for every 10 fish that the tourists 8 . 9 of the day, the fisherman who kindly helped others received a (an) 10 basket of fish, and also got to know a large group of new friends. At the same time, he was respected(尊重) as 11 . On the other hand, 12 fisherman didn’t have much fun. When the others circled around his camp, he became even more 13 . After fishing for a whole day alone, he looked into the fish basket, and found he had far 14 fish than his friend. If we help others succeed, we harvest both 15 and friends.
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