普通研究生考试是全国统一的考试吗，试卷也全国统...

发布时间：2021-11-17

普通研究生考试是全国统一的考试吗，试卷也全国统一的吗？

最佳答案

考研政治、考研英语、考研数学为全国统考，其中考研英语分为考研英语一和考研英语二。考研数学分为考研数学一、考研数学二、考研数学三。根据工学、经济学、管理学各学科、专业对硕士研究生入学所应具备数学知识和能力的不同要求，硕士研究生入学统考数学试卷分为3种，其中针对工学门类的为数学一、数学二，针对经济学和管理学门类的为数学三。
考研专业课为各个学校自己命题，不属于全国统考

下面小编为大家准备了 研究生入学 的相关考题，供大家学习参考。
纳什均衡

答案：
解析：
纳什均衡是在给定对方决策的条件下所做出的对自己最好的决策。一旦形成纳什均衡，博弈的任何一方都不再有改变自己决策的激励。
Given the advantages of electronic money,you might think that we would move quickly to the cashless society in which all payments are made electronically.1 a true cashless society is probably not around the corner.Indeed,predictions have been 2 for two decades but have not yet come to fruition.For example,Business Week predicted in 1975 that electronic means of payment would soon"revolutionize the very 3 of money itself,"only to 4itself several years later.Why has the movement to a cashless society been so 5 in coming?Although electronic means of payment may be more efficient than a payments system based on paper,several factors work 6 the disappearance of the paper system.First,it is very 7 to set up the computer,card reader,and telecornmunications networks necessary to make electronic money the 8 form of payment Second,paper checks have the advantage that they 9 receipts,something that many consumers are unwilling to 10.Third,the use of paper checks gives consumers several days of"float"-it takes several days 11 a check is cashed and funds are 12 from the issuer's account,which means that the writer of the check can cam interest on the funds in the meantime.13 electronic payments arc immediate,they eliminate the float for the consumer.Fourth,electronic means of payment may 14 security and privacy concerns.We often hear media reports that an unauthorized hacker has been able to access a computer database and to alter information 15 there.The fact that this is not an 16 occurrence means that dishonest persons might be able to access bank accounts in electronic payments systems and 17 from someone else's accounts.The 18 of this type of fraud is no easy task,and a new field of computer science is developing to 19 security issues.A further concern is that the use of electronic means of payment leaves an electronic 20 that contains a large amount of personal data.There are concerns that government,employers,and marketers might be able to access these data,thereby violating our privacy.1选？

A.However
B.Moreover
C.Therefore
D.Otherwise
答案：A
解析：
逻辑关系【直击答案】本题空格所在句为a true cashless society is probably not around the corner.根据所给四个选项，可以判断出空格所需填入词是衔接上下文逻辑的连词。解答本题，要联系上文信息“由于电子货币的优势，你可能会认为我们将会很快步入一个没有现金的社会，所有交易都是由电子货币完成”。空格所在句意为，“真正的无现金社会可能还不会很快到来”。around the corner意为“在拐角处，即将来临”，由此可判断出两个句子含义之间是转折逻辑关系，故答案为A项。【命题思路】本题考查考生对上下文信息的理解，同时也考查考生对表述逻辑关系的连词的理解和运用。【干扰排除】本题B项therefore有一定干扰度，若考生没有理解空格所在句中around the corner的意思，很容易将本句意思理解为和上一句为递进关系的含义而误选。
速发持续反应时有
A.细静脉内皮细胞收缩
B.仅毛细血管内皮细胞损伤
C.毛细血管和小静脉内皮细胞损伤
D.细动毛细血管和细静脉内皮细胞均损伤

答案：D
解析：
[考点]炎症反应特点[分析]速发短暂反应主要由组胺、缓激肽等引起细静脉内皮细胞迅速发生收缩，导致血管通透性增加，一般持续时间较短。速发持续反应主要由严重烧伤、化脓菌感染等直接损伤内皮细胞，导致血管通透性增加，一般持续时间较长，微循环的细动脉、毛细血管和细静脉均可受累。
在临床上，约有40%的滤泡型淋巴瘤会转化为弥漫大B细胞型淋巴瘤，其最常见的分子机制是
A.p53基因突变 B. ras基因突变
C.融合基因形成 D. myc基因扩增

答案：A
解析：
在临床上，约有40%的滤泡型淋巴瘤会转化为弥漫大B细胞型淋巴瘤，一般认为与P53基因突变有关。

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