四岁男童，吃花生米时突发气促，吸气困难，诊断为气管异物。查体可见 （）
A.呼气时，胸骨上窝、锁骨上窝、肋间隙向内凹陷
B.吸气时，胸骨上窝、锁骨上窝、腹部向内凹陷
C.吸气时，胸骨上窝、肋间隙、腹部向内凹陷
D.呼气时，胸骨上窝、锁骨上窝、腹部向内凹陷
E.吸气时，胸骨上窝、锁骨上窝、肋间隙向内凹陷
参考答案：E
解析：吸气性呼吸困难，由于喉、气管、大支气管的炎症水肿、肿瘤或异物等引起狭窄或梗阻所致。其特点是吸气显著困难，高度狭窄时呼吸肌极度紧张，胸骨上窝、锁骨上窝、肋间隙在吸气时明显下陷（称为“三凹征”），可伴有干咳及高调的吸气性哮鸣音。
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 Look! This is Santa Claus. He lives 1 Germany now. He can 2 languages. He works in a 3 in the small village of Himmelpfort. In a year the post office is open in November and 4 . It lasts (持续) for about a month.When 5 is coming, Santa Claus becomes very 6 . Every day he receives thousands of kids' letters from around the world. Most of 7 are kids' Christmas wishes. It isn't easy for Santa to answer the letters because kids write them 8 different languages. But don't worry! He has many 9 . Write to Santa Claus quickly! You can tell him 10 about yourself, your family and your dreams. You may get a reply (回信) from him. | |||
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