若函数y=5x+1+m的图象不经过第二象限,则m的取值范围是() 发布时间:2017-05-02 19:31 │ 来源:www.tikuol.com 题型:填空题 问题: 若函数y=5x+1+m的图象不经过第二象限,则m的取值范围是( )
题型:填空题 在数列{an}中,若an2-an-12=p(n≥2,n∈N×,p为常数),则称{an}为“等方差数列”,下列是对“等方差数列”的判断;①若{an}是等方差数列,则{an2}是等差数列;②{(-1)n}是等方差数列;③若{an}是等方差数列,则{akn}(k∈N*,k为常数)也是等方差数列;④若{an}既是等方差数列,又是等差数列,则该数列为常数列.其中正确命题序号为______.(将所有正确的命题序号填在横线上) 查看答案
题型:填空题 选词,并用所选词的适当形式填空near, hungry , China, a, show, over, shop, little, what, up My mother speaks very good English but she knows 1 Japanese. She went to Tokyo for a meeting on November 11th. The meeting was 2 on November 15th. The next morning she went to a park and then did some 3 . At noon she felt 4 .She went to the 5 restaurant and sat down at a table. A waiter came 6 and asked her 7 she wanted. My mother said in English that she would like some noodles with chicken and some vegetables. But the waiter didn’t know English. My mother looked around. No one was eating noodles. When she saw a piece of paper on her table, she had 8 idea. She took out a pen and wrote the 9 words for the food on the paper. She 10 the paper to the waiter. The waiter said “OK” and soon he brought her noodles. 查看答案
题型:填空题 男,50岁,2个月前因胃癌手术,术中输血800ml,术后40天起乏力,食欲减退,查肝功能ALT180U,AST166U,SB160tμmol/L,血抗HBs(+)。为做病原学诊断应重点查()A.乙肝病毒标记物B.HAV-IgMC.HDAgD.抗HEV-IgME.抗HCV抗体及HCV-RNA 查看答案
题型:填空题 男性,28岁,因酒醉后渐起发热,体温最高达39.5℃,伴寒战。咳嗽,少量脓血痰。病程已近2周,曾应用过青霉素、苯唑西林、氯唑西林、头孢唑啉、阿米卡星、甲硝唑等不见好转。1天前起气急,左侧胸痛,X线检查示左肺中下野大片密影,其中见多发性脓腔,部分伴液平面。左侧少量液气胸,肺约压缩15%为证实病原学诊断,首先应采集的标本是()A.经纤维支气管镜吸引标本B.痰液C.胸腔积液D.咽拭子E.血液 查看答案