问题
单项选择题 案例分析题
患者，男性，25岁，因咽痛服增效联磺片后舌背起疱破溃后疼痛难忍，进食受限来诊，以往曾有类似病史，并因口服增效联磺片后发生，查舌背黏膜表面可见0．8cm×1．2cm界限清楚的糜烂面，表面渗出较多。
本病例最可能诊断为（）
A.急性疱疹性龈口炎
B.黏膜血疱
C.药物过敏性口炎
D.多形性红斑
E.接触性口炎
答案
参考答案：C
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患者，男性，25岁，因咽痛服增效联磺片后舌背起疱破溃后疼痛难忍，进食受限来诊，以往曾有类似病史，并因口服增效联磺片后发生，查舌背黏膜表面可见0．8cm×1．2cm界限清楚的糜烂面，表面渗出较多。
本病例最可能诊断为（）
A.急性疱疹性龈口炎
B.黏膜血疱
C.药物过敏性口炎
D.多形性红斑
E.接触性口炎
参考答案：C
Every year there are hundreds of earthquakes in different parts of the world. In Sept.1923, Tokyo and Yokohama were both destroyed by an earthquake and the fires that followed it. They had to be completely rebuilt. One of the most serious earthquakes was in China’s Shanxi Province in 1556. It killed almost one million people. We measure an earthquake’s strength on the Richter scale. The Richter scale was introduced in 1935 in Southern California in the USA. It measures earthquakes on a scale of one to ten. Any earthquake measuring five or more is usually serious. The earth’s crust (地壳) is made up of layers of rock called plates. As these plates move, they sometimes crash against each other, causing the crust to quake. In cities such as Tokyo, where small quakes happen quite often, many modern buildings are designed to be flexible so when the earth moves, they move with it. Earthquakes can also break up gas or oil pipes. This can cause fires to break out, which can do as much damage as the earthquake itself. Another effect of earthquakes is tsunamis (海啸). These are huge waves created by earthquakes beneath the sea. They can be many meters high and cause great damage to coastal towns and cities. China, Japan, Russia and the USA have the highest occurrence (发生) of earthquakes in the world.
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