麻疹早期诊断最有意义的临床表现是
A．发热、流涕、咳嗽
B．有感冒接触史
C．耳后淋巴结肿大
D．手、足出现红色斑丘疹
E．Koplik斑
参考答案：E
解析：麻疹黏膜斑又称Koplik斑，发疹前24～48小时出现，位于颊内侧黏膜，白色斑点，直径0.5～l姗，有时有红晕环绕，可累及整个黏膜及唇部黏膜，在皮疹出现后逐渐消失，对出疹前早期诊断极有帮助。
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| When my son, Mark, was in the third grade, he set aside all his allowance for over two months to buy holiday presents for those he loved. He had __1__ twenty dollars. The third Saturday in December Mark __2__ that he had made a list and had his money in his pocket. I drove him to a local drug store, the modern version of __3__ we used to call the "Five and Dime". Mark __4__ a hand basket and went off on his own while I waited __5__ at the front of the store. It took Mark over 45 minutes to __6__ his presents. The smile on his face as he __7__ the checkout counter was truly joyful. The clerk rang up his __8__ as I politely looked the other way. Mark kept within his budget and reached into his pocket for his money. It was not there. There was a hole in his pocket, __9__ no money. Mark stood in the middle of the store holding his basket, tears__10__ his cheeks. Then an amazing thing happened. A __11__ in the store came up to Mark. She __12__ to his level and took him in her arms and said, "You would do me the greatest __13__ if you let me replace your money. It would be the most wonderful present you could ever give me. I only ask that one day you __14__ it on. One day, __15__ you grow up, I would like you to __16__ someone you can help. When you do help other persons, I know you will feel as __17__ about it as I do now." Mark took the money, tried to dry his tears and ran to the checkout counter as fast as he could go. I think we all enjoyed our __18__ that year almost as much as Mark enjoyed giving them to us. I would like to say "thank you" to that __19__ woman. I would like to tell her that four years later Mark went house to house __20__ blankets and coats for the people in the Oakland fire and he thought of her. | ||||
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