空回肠的肠外瘘者可行
A.肠段部分切除吻合术B.粘连带切断和分离术C.肠瘘局部楔形切除缝合术D.肠瘘旷置术E.小肠浆膜补片覆盖修补术
参考答案:A
短文填空。根据短文内容及首字母提示,补全空格内单词,使短文完整、通顺。
A tall man and a short man were waiting for a taxi on the same corner. An old lady joined them on the
corner because she (1)a______ wanted to catch a taxi.
It was raining hard, and all the taxis passed without (2)s______. At last, a taxi stopped, and the tall man
rushed ahead of the short man The short man (3)s______ him and they (4)s______ to argue (争吵). The
tall man was in a (5)h______, but the short man was on the corner (6)f______. The short man pushed the
tall man, and the tall man grabbed (抓住) the short (7)m______ coat. The old lady calmly closed her umbrella,
(8)o______ the door and got into the taxi. The taxi (9)d______ smiled and (10)d______ away with the woman.
蒙特卡罗法的主要优点是()
A.计算简单快捷
B.解决了统计学概念上的厚尾问题(但只有在市场场景设置有效的情况下)
C.应用灵活,能够计算非线性的资产组合的风险值
D.不存在取样风险