解放军文职招聘考试2012年普通高等学校招生全国统一考试（新课标） 理科数学-解放军文职人员招聘-军队文职考试-红师教育
解放军文职招聘考试2012年普通高等学校招生全国统一考试（新课标） 理科数学发布时间：2017-06-24 11:03:51绝密*启用前2012年普通高等学校招生全国统一考试（新课标）注息事项:1.本试卷分第Ⅰ卷（选择题）和第Ⅱ卷(非选择题)两部分。答卷前，考生务必将自己的姓名、准考证号填写在本试卷和答题卡相应位置上。2.问答第Ⅰ卷时。选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。如需改动.用橡皮擦干净后，再选涂其它答案标号。写在本试卷上无效.3.回答第Ⅱ卷时。将答案写在答题卡上.写在本试卷上无效4.考试结束后.将本试卷和答且卡一并交回。一．选择题：本大题共12小题，每小题5分，在每小题给同的四个选项中，只有一项是符合题目要求的。（1）已知集合；,则中所含元素的个数为（ ），，，共10个（2）将名教师，名学生分成个小组，分别安排到甲、乙两地参加社会实践活动，每个小组由名教师和名学生组成，不同的安排方案共有（ ）种 种 种 种甲地由名教师和名学生：种（3）下面是关于复数的四个命题：其中的真命题为（ ）的共轭复数为 的虚部为，，的共轭复数为，的虚部为（4）设是椭圆的左、右焦点，为直线上一点，是底角为的等腰三角形，则的离心率为（ ）是底角为的等腰三角形（5）已知为等比数列，，，则（ ）（6）如果执行右边的程序框图，输入正整数和实数，输出，则（ ）为的算术平均数和分别是中最大的数和最小的数和分别是中最小的数和最大的数（7）如图，网格纸上小正方形的边长为，粗线画出的是某几何体的三视图，则此几何体的体积为（ ）该几何体是三棱锥，底面是俯视图，高为此几何体的体积为（8）等轴双曲线的中心在原点，焦点在轴上，与抛物线的准线交于两点，；则的实轴长为（ ）设交的准线于（9）已知，函数在上单调递减。则的取值范围是（ ）不合题意 排除合题意 排除得：（10） 已知函数；则的图像大致为（ ）得：或均有 排除（11）已知三棱锥的所有顶点都在球的求面上，是边长为的正三角形，为球的直径，且；则此棱锥的体积为（ ）的外接圆的半径，点到面的距离为球的直径点到面的距离为此棱锥的体积为另：排除（12）设点在曲线上，点在曲线上，则最小值为（ ）函数与函数互为反函数，图象关于对称函数上的点到直线的距离为设函数由图象关于对称得：最小值为本卷包括必考题和选考题两部分。第13题~第21题为必考题，每个试题考生都必须作答，第22-第24题为选考题，考生根据要求做答。二．填空题：本大题共4小题，每小题5分。（13）已知向量夹角为 ，且；则(14) 设满足约束条件：；则的取值范围为约束条件对应四边形边际及内的区域：（15）某个部件由三个元件按下图方式连接而成，元件1或元件2正常工作，且元件3正常工作，则部件正常工作，设三个电子元件的使用寿命（单位：小时）均服从正态分布，且各个元件能否正常相互独立，那么该部件的使用寿命超过1000小时的概率为三个电子元件的使用寿命均服从正态分布得：三个电子元件的使用寿命超过1000小时的概率为超过1000小时时元件1或元件2正常工作的概率那么该部件的使用寿命超过1000小时的概率为（16）数列满足，则的前项和为可证明：三、解答题：解答应写出文字说明，证明过程或演算步骤。（17）（本小题满分12分）已知分别为三个内角的对边，（1）求 （2）若，的面积为；求。（2）解得：（l fx lby）18.（本小题满分12分）某花店每天以每枝元的价格从农场购进若干枝玫瑰花，然后以每枝元的价格出售，如果当天卖不完，剩下的玫瑰花作垃圾处理。（1）若花店一天购进枝玫瑰花，求当天的利润(单位：元)关于当天需求量（单位：枝，）的函数解析式。（2）花店记录了100天玫瑰花的日需求量（单位：枝），整理得下表：以100天记录的各需求量的频率作为各需求量发生的概率。（i）若花店一天购进枝玫瑰花，表示当天的利润（单位：元），求的分布列，数学期望及方差；（ii）若花店计划一天购进16枝或17枝玫瑰花，你认为应购进16枝还是17枝？请说明理由。当时，得：（2）（i）可取，，的分布列为
解放军文职招聘考试Knowing the Consequences of Choice (2)-解放军文职人员招聘-军队文职考试-红师教育
解放军文职招聘考试Knowing the Consequences of Choice (2)发布时间：2017-11-27 23:19:31Knowing the Consequences of Choice (2)First, I would like to say: To choose means to claim opportunities.I am a third-year English major. An important choice for me, of course, is what to do upon gradua tion. I can go to graduate school, at home or abroad. I can go to work as a teacher, a translator, a journalist, an editor and a diplomat. Actually, the system of mu tual selection has allowed me to approach almost every career opportunity in China.All of these sound good. But they are only possi bilities. To those of us who are bewildered at the abun dance of opportunities, I would like to say: To choose means to accept challenge.To us young people, challenge often emerges in the form of competition. In the next century, competi tion will not only come from other college graduates, but also from people of all ages and of all origins.With increasing international exchanges, we have to face growing competition from the whole outside world. This is calling for a higher level of our personal development.Fifteen years ago, the knowledge of a foreign lan guage or of computer operation was considered merely an advantage. But today, with wider educational opportunities, this same knowledge has become essential to everyone.As we gain more initiative in choice making, the consequence of each choice also becomes more impor tant.Nuclear power, for instance, may improve our quality of life. But it can also be used to damage the lives and possessions of millions. Economic develop ment has enriched our lives but brought with it serious harm to our air, water and health. To those of us who are blind to the consequences of their choices, I would like to say: To choose means to take responsibility. As policy makers of the next century, we cannot fail to see our responsibility to those who share the earth with us.The traditional Chinese culture teaches us to study hard and to work hard so as to honor our family. To me, however, this family is not just the five of us who quarreled over television programmes. Rather, it is the whole of the human family. As I am making my choices, I will not forget the smile of my teacher when I correctly spelled out the word China for the first time. I will not forget the tearful eyes of women and children in Bosnia, Chechen and Somali, where mil lions are suffering from war, famine or poverty.All these people, known or unknown, make up our big human family. At different points, they come into my life and broaden my perspective. Now as I am to make choices for myself, it is time to make efforts to im prove their lives, because a world will benefit us all on ly if everyone in it can lead a peaceful and prosperous life.
