慢性根尖脓肿的病理特点是（）
A.增生的肉芽组织团块，中央有上皮
B.以大量中性粒细胞游出为主
C.以组织坏死为主
D.病变组织中有透明小体
E.病变周围有纤维组织包绕
参考答案：E
解析：慢性根尖周脓肿是慢性根尖周肉芽肿中央的细胞坏死、液化形成的脓肿；或急性根尖周脓肿处理不彻底，根尖部潴留的脓液被周围纤维结缔组织包绕而形成的。
| 短文改错。 文中共有10处语言错误，每句中最多有两处。 错误涉及一个单词的增加、删除或修改。 增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。 删除：把多余的词用斜线（＼）划掉。 修改：在错的词下划一横线，并在该词下面写出修改后的词。 注意：每处错误及其修改仅限一词。只允许修改10处，多者（从第11处起）不计。 | |
| Peter was a small boy. He lived in with his parents in a small house near some hills. People there were both poor. One night it was very dry and windy. When everybody was asleep, Peter sudden heard some noise. It came out from the kitchen. He got up and walking to the kitchen. He found that the wood besides the stove was burning. There was no water tap in the house, but he could not put out the fire. He shouts loudly to wake up everyone in the house. Then she ran out of his house and knocked at the doors of many houses to wake people up. They all left their house quickly. At last the fire was put out the firemen. Many houses were burnt. But nobody was burnt in the fire. _______________________________________________________________________________ |