某男，70岁，发作性胸骨后闷痛4天，突发剧烈胸痛1小时，伴心悸、恐惧、濒死感，含服硝酸甘油不能缓解。既往有高血压病史30余年，吸烟史、饮酒40多年，20支／天，2两／天。查体：P90次／分，BP140/80mmHg，急性病容伴大汗，面色苍白，双肺无干湿啰音，心音低钝，律整，未闻及杂音，腹无压痛。
本次就诊前4天胸痛的原因是（）
A.心绞痛
B.肺梗死
C.心包炎
D.心肌梗死
E.夹层动脉瘤
参考答案：A
| Reading comprehension. 阅读理解。 |
| Li Ming is a student. He is not a very tall boy. He is only 13 years old. He lives with his family in an apartment. It is not far from the park. The park is very nice. He often goes to the park with his family. |
| 看图根据短文判断正(T)误(F)。 ( ) 1. He is a tall boy. ( ) 2. He lives in a house. ( ) 3. The park is good. ( ) 4. The park is near his apartment. |  |