问题
单项选择题
患者，男，45岁，半年来反复发作全口牙龈红肿出血、疼痛，曾在外院治疗但效果不明显。检查发现全口牙龈明显红肿，质地松软，触易出血，多处牙周脓肿。
考虑可能的原因及诊断
A．急性坏死性溃疡性牙周炎
B．合并糖尿病牙周炎
C．侵袭性牙周炎
D．慢性牙周炎急性活动期
E．单纯急性多发性牙周脓肿
答案
参考答案：B
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患者，男，45岁，半年来反复发作全口牙龈红肿出血、疼痛，曾在外院治疗但效果不明显。检查发现全口牙龈明显红肿，质地松软，触易出血，多处牙周脓肿。
考虑可能的原因及诊断
A．急性坏死性溃疡性牙周炎
B．合并糖尿病牙周炎
C．侵袭性牙周炎
D．慢性牙周炎急性活动期
E．单纯急性多发性牙周脓肿
参考答案：B
The Pecan Thief When I was six years old, I was visiting my grandfather's farm in Kansas. Grandpa had sent me into the 36 to gather pecans for us to enjoy later. Pecan picking was really 37 work and my little basket was only half full. I wasn't about to 38 Grandpa down. Just then something caught my 39 . A large brown squirrel was a few feet away. I watched as he picked up a pecan, hurried to a tree and 40 in a large hole in the trunk. A moment later the squirrel 41 out and climbed down to the ground to pick up another nut. Once again, he took the pecan back to his hiding place. Not so 42 anymore, I thought. I dashed over to the tree and looked into the hole. It was 43 with pecans! Golden pecans were right there for taking. This was my 44 . Handful by handful, I scooped all of those pecans into my basket. Now it was full! I was so 45 of myself. I couldn't wait to show Grandpa all the pecans. 46 , I ran back and shouted, “Look at all the pecans!” He looked into the basket and said, “Well, well, how did you find so many ? ” I told him how I'd 47 the squirrel and taken the pecans from his hiding place. Grandpa congratulated me on how smart I'd been in observing the squirrel and his habits. Then he did something that 48 me. He handed the basket back to me and put his arm gently 49 my shoulders. “That squirrel worked very hard to gather his winter 50 of food, ” he said. “Now that all of his pecans are gone, don't you think that little squirrel will 51 the cold winter? ” “I didn't think about that,” I said. “I know, ” Grandpa said. “But a good man should never take 52 of someone else's hard work.” Suddenly I felt a bit 53 . The image of the starving squirrel wouldn't 54 my mind. There was only one thing I could do. I carried the basket back to the tree and poured all the nuts into the hole. I didn't eat any pecans that night, but I had something much more filling—the 55 of knowing I had done just the right thing.
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