- 卤代烃
- 共1238题
"Did you go to Belgium last year when you were on a business trip to Europe " "No, ______ there"
A．I have never gone
B．I never did
C．I've never been
D．I never was
正确答案
C
解析
暂无解析
Cats sleep ______ day and hunt ______ night.
A．in, in
B．at, at
C．during, during
D．by, by
正确答案
D
解析
暂无解析
China is one of the few countries in the world that have devoted great efforts to ______ world peace.
A．preserving
B．conserving
C．possessing
D．reserving
正确答案
A
解析
暂无解析
桡骨头半脱位最常见的处理方法是
正确答案
解析
复位时前臂旋后、旋前活动，反复数次，可听到弹响，复位后不必固定，但不可再暴力牵拉。
女性，48岁。发作性剑突下及右上腹绞痛3天，伴有寒战，半年前有过类似发作史。查体：体温39℃，脉搏110次/分，血压140/85mmHg，血常规检查：WBC 12×10<sup>9</sup>/L，N 80%，神志清楚，皮肤、巩膜轻度黄染，右肋缘下扪及肿大的胆囊、触痛，首选的检查方法是
正确答案
解析
发作性剑突下及右上腹绞痛3天提示胆管结石，皮肤、巩膜轻度黄染，肿大的胆囊、触痛提示：胆囊炎，最可能的诊断是肝外胆管结石并胆管炎。腹部B超可以发现结石，并明确其大小和部位，操作简单，价格低廉，对结石的诊断准确率接近100%，是首选的检查方法。
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