解放軍文職招聘考試2012年普通高等學(xué)校招生全國統(tǒng)一考試（新課標(biāo)） 理科數(shù)學(xué)-解放軍文職人員招聘-軍隊文職考試-紅師教育
解放軍文職招聘考試2012年普通高等學(xué)校招生全國統(tǒng)一考試（新課標(biāo)） 理科數(shù)學(xué)發(fā)布時間：2017-06-24 11:03:51絕密*啟用前2012年普通高等學(xué)校招生全國統(tǒng)一考試（新課標(biāo)）注息事項:1.本試卷分第Ⅰ卷（選擇題）和第Ⅱ卷(非選擇題)兩部分。答卷前，考生務(wù)必將自己的姓名、準(zhǔn)考證號填寫在本試卷和答題卡相應(yīng)位置上。2.問答第Ⅰ卷時。選出每小題答案后，用鉛筆把答題卡上對應(yīng)題目的答案標(biāo)號涂黑。如需改動.用橡皮擦干凈后，再選涂其它答案標(biāo)號。寫在本試卷上無效.3.回答第Ⅱ卷時。將答案寫在答題卡上.寫在本試卷上無效4.考試結(jié)束后.將本試卷和答且卡一并交回。一．選擇題：本大題共12小題，每小題5分，在每小題給同的四個選項中，只有一項是符合題目要求的。（1）已知集合；,則中所含元素的個數(shù)為（ ），，，共10個（2）將名教師，名學(xué)生分成個小組，分別安排到甲、乙兩地參加社會實(shí)踐活動，每個小組由名教師和名學(xué)生組成，不同的安排方案共有（ ）種 種 種 種甲地由名教師和名學(xué)生：種（3）下面是關(guān)于復(fù)數(shù)的四個命題：其中的真命題為（ ）的共軛復(fù)數(shù)為 的虛部為，，的共軛復(fù)數(shù)為，的虛部為（4）設(shè)是橢圓的左、右焦點(diǎn)，為直線上一點(diǎn)，是底角為的等腰三角形，則的離心率為（ ）是底角為的等腰三角形（5）已知為等比數(shù)列，，，則（ ）（6）如果執(zhí)行右邊的程序框圖，輸入正整數(shù)和實(shí)數(shù)，輸出，則（ ）為的算術(shù)平均數(shù)和分別是中最大的數(shù)和最小的數(shù)和分別是中最小的數(shù)和最大的數(shù)（7）如圖，網(wǎng)格紙上小正方形的邊長為，粗線畫出的是某幾何體的三視圖，則此幾何體的體積為（ ）該幾何體是三棱錐，底面是俯視圖，高為此幾何體的體積為（8）等軸雙曲線的中心在原點(diǎn)，焦點(diǎn)在軸上，與拋物線的準(zhǔn)線交于兩點(diǎn)，；則的實(shí)軸長為（ ）設(shè)交的準(zhǔn)線于（9）已知，函數(shù)在上單調(diào)遞減。則的取值范圍是（ ）不合題意 排除合題意 排除得：（10） 已知函數(shù)；則的圖像大致為（ ）得：或均有 排除（11）已知三棱錐的所有頂點(diǎn)都在球的求面上，是邊長為的正三角形，為球的直徑，且；則此棱錐的體積為（ ）的外接圓的半徑，點(diǎn)到面的距離為球的直徑點(diǎn)到面的距離為此棱錐的體積為另：排除（12）設(shè)點(diǎn)在曲線上，點(diǎn)在曲線上，則最小值為（ ）函數(shù)與函數(shù)互為反函數(shù)，圖象關(guān)于對稱函數(shù)上的點(diǎn)到直線的距離為設(shè)函數(shù)由圖象關(guān)于對稱得：最小值為本卷包括必考題和選考題兩部分。第13題~第21題為必考題，每個試題考生都必須作答，第22-第24題為選考題，考生根據(jù)要求做答。二．填空題：本大題共4小題，每小題5分。（13）已知向量夾角為 ，且；則(14) 設(shè)滿足約束條件：；則的取值范圍為約束條件對應(yīng)四邊形邊際及內(nèi)的區(qū)域：（15）某個部件由三個元件按下圖方式連接而成，元件1或元件2正常工作，且元件3正常工作，則部件正常工作，設(shè)三個電子元件的使用壽命（單位：小時）均服從正態(tài)分布，且各個元件能否正常相互獨(dú)立，那么該部件的使用壽命超過1000小時的概率為三個電子元件的使用壽命均服從正態(tài)分布得：三個電子元件的使用壽命超過1000小時的概率為超過1000小時時元件1或元件2正常工作的概率那么該部件的使用壽命超過1000小時的概率為（16）數(shù)列滿足，則的前項和為可證明：三、解答題：解答應(yīng)寫出文字說明，證明過程或演算步驟。（17）（本小題滿分12分）已知分別為三個內(nèi)角的對邊，（1）求 （2）若，的面積為；求。（2）解得：（l fx lby）18.（本小題滿分12分）某花店每天以每枝元的價格從農(nóng)場購進(jìn)若干枝玫瑰花，然后以每枝元的價格出售，如果當(dāng)天賣不完，剩下的玫瑰花作垃圾處理。（1）若花店一天購進(jìn)枝玫瑰花，求當(dāng)天的利潤(單位：元)關(guān)于當(dāng)天需求量（單位：枝，）的函數(shù)解析式。（2）花店記錄了100天玫瑰花的日需求量（單位：枝），整理得下表：以100天記錄的各需求量的頻率作為各需求量發(fā)生的概率。（i）若花店一天購進(jìn)枝玫瑰花，表示當(dāng)天的利潤（單位：元），求的分布列，數(shù)學(xué)期望及方差；（ii）若花店計劃一天購進(jìn)16枝或17枝玫瑰花，你認(rèn)為應(yīng)購進(jìn)16枝還是17枝？請說明理由。當(dāng)時，得：（2）（i）可取，，的分布列為
解放軍文職招聘考試Knowing the Consequences of Choice (2)-解放軍文職人員招聘-軍隊文職考試-紅師教育
解放軍文職招聘考試Knowing the Consequences of Choice (2)發(fā)布時間：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.
