北郵網(wǎng)絡(luò)學(xué)院大學(xué)英語2階段作業(yè)(編輯修改稿)
2024-11-09 01:22 本頁面
【文章內(nèi)容簡介】 案: 得分: [0]有非零解．試題分值: ，則實(shí)數(shù)t（）時(shí)，線性無關(guān)． A.≠3 B.≠2 C.=2 D.=3 知識(shí)點(diǎn): 階段作業(yè)二 學(xué)生答案: [B。]得分: [10] 試題分值: ，,則向量 b可由向量線性表示的表達(dá)式為（）．: 階段作業(yè)二 學(xué)生答案: [B。]得分: [10] 試題分值:，線性無關(guān)，則（ ,)． 知識(shí)點(diǎn): 階段作業(yè)二 學(xué)生答[D。] 案: 得分: [10] 值:第三篇：北郵網(wǎng)絡(luò)學(xué)院工程數(shù)學(xué)階段作業(yè)四一、判斷題（共5道小題，）， 知識(shí)點(diǎn): 階段作業(yè)四 學(xué)生答[B。] 案: 得分: [10] 知識(shí)點(diǎn): 階段作業(yè)四 學(xué)生答[A。] 案: 得分: [10]， 知識(shí)點(diǎn): 階段作業(yè)四 學(xué)生答[A。] 案: 得分: [10]．，則，．．試題分值:試題分值:試題分值: (X，Y)，則常數(shù)． 知識(shí)點(diǎn): 階段作業(yè)四 學(xué)生答[A。] 案: 得分: [10] 5.(錯(cuò)誤)試題分值: 設(shè)（X，Y）的概率密度為獨(dú)立． 知識(shí)點(diǎn): 階段作業(yè)四 學(xué)生答[A。] 案: 得分: [0]，則X與Y相互試題分值:二、單項(xiàng)選擇題（共5道小題，），則X與Y的協(xié)方（）． 知識(shí)點(diǎn): 階段作業(yè)四 學(xué)生答[C。] 案: 得分: [10]試題分值: ～U［1，3］，則（）．: 階段作業(yè)四 學(xué)生答[A。] 案: 得分: [10] 3.(錯(cuò)誤)設(shè)，如果，則X的分布列試題分值:（）．: 階段作業(yè)四 學(xué)生答[C。] 案: 得分: [0]試題分值: （）．: 階段作業(yè)四 學(xué)生答案: [B。]得分: [10] 試題分值:則（）． 知識(shí)點(diǎn): 階段作業(yè)四 學(xué)生答案: [A。]，則D(X)=得分: [10]試題分值:第四篇：2015北郵遠(yuǎn)程教育大學(xué)英語階段2作業(yè)一、閱讀理解（共1道小題，） day in 1965, when I was a library worker at school, a teacher came to had a student who finished his work before all the others and needed something more difficult for him to do.“Could you help me in the library?” she said, “Send him along.”Soon, a goldenhaired boy appeared.“Do you have a job for me?” he told him about a system for sorting picked up the idea I showed him some cards for some unreturned books that though had been returned but not some books were put on wrong said, “Is it a kind of a detective job?” I answered yes, and then began his had found three books with wrong card by the time his teacher opened the door and said, “Time for rest!” he argued for finishing the finding job, but the teacher next morning, he arrived early, “I want to finish these books,” he the end of the day, when he asked to work with me more often, it was easy for me to say a few weeks I found a note on my desk, inviting me to dinner at the boy’s the end of a pleasant evening, his mother declared that the family would be moving to another school son’s first concern, she said, was leaving the library.“Who will find the lost books?” he the time came, it was hard to say at the beginning he had seemed an ordinary boy, his strong feeling of interest had made him you know who he is? This boy became a great man of the information age: Bill did the teacher go to the library to find a job for Bill Gates? the teacher found the librarian quite Bill Gates wanted to find a Bill Gates finished his study quickly and had more free time than the the library needed a new do you know from the passage? work was very difficult for Bill Gates did his job without any librarian was too busy to have a mother hoped that Bill Gates would stay for his sentence “He picked up the idea immediately” means learned that system quickly he collected that system quickly he lifted up that system quickly he improved that system quickly was Bill Gates expected to do in the library? the lost the the worker with everything in the books with wrong did Bill Gates feel when his family would move to another school area?：得分：[5, 5, 5, 5, 5] 提示：[1]。本題問“為何那位老師要去圖書館給Bill Gates找工作？”中心詞是“the teacher”和“the library”。答案在第一段的第二句，該句大意是“She had a student who finished his work before all the others and needed something more difficult for him to ，這個(gè)學(xué)生比別的學(xué)生提前完成功課，需要找一些難一點(diǎn)的事情來做。”據(jù)此可知答案是C。[2]。本題問“你從文章中可以得知什么？”解決這種題目，我們首先要瀏覽一下選項(xiàng)的大意。A的意思是“對Bill Gates來說，圖書館的工作太難了?！盉的意思是“Bill Gates毫不困難地就完成了圖書館的工作?！盋的意思是“那名圖書管理員太忙了，都沒有時(shí)間休息?！盌的意思是“Bill Gates的母親希望他能夠留下來繼續(xù)做這份工作?！苯又?，我們要對每一個(gè)選項(xiàng)進(jìn)行判斷。第二段的第四句話告訴我們，Bill Gates很快就領(lǐng)會(huì)了那位圖書管理員的意思。據(jù)此可見A是錯(cuò)誤的，B是正確的。文
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