设点A(a,b)随机分布在0≤a≤10≤b≤1,构成的区域内,则点A(a,b)落 发布时间:2017-05-12 03:50 │ 来源:www.tikuol.com 题型:填空题 问题: 设点A(a,b)随机分布在0≤a≤10≤b≤1,构成的区域内,则点A(a,b)落在圆a2+b2=12外的概率为______.
题型:填空题 The old man was the only person on the spot____ helped him ____ a series of facts as toldA.who, set up B.who ,set downC.which ,set outD.that, set off 查看答案
题型:填空题 患者,男性,36岁,主因黑色稀便3日入院,3日来,每日解黑色稀便3次,每次约260g,病前有多年上腹部隐痛史,常有夜间痛、饥饿痛,进食可缓解。查:贫血貌,皮肤无黄染,肝脾肋下未触及。最可能的诊断是A.胃溃疡并出血B.十二指肠溃疡并出血C.食管与胃底静脉曲张破裂出血D.胃癌并出血E.急性胃黏膜损害所致的出血 查看答案