考研习题练习

考研每日一练(2019/5/11)
1题:特发性血小板减少性紫癜的主要发病机制是
A.脾脏吞噬血小板增多
B.骨髓巨核细胞生成减少
C.抗血小板抗体产生
D.雌激素抑制血小板生成
【单选题】:      

Few beyondCalifornia’s technology crowd recognise the name Larry Sonsini; none within its circle could fail to. For four decades he has been lawyer, adviser and friend to many prominent companies and investors. Some consider him the most powerful person in Silicon Valley.Companies beg for his law firm to represent them. The 65-year-old chairman of Wilson Sonsini Goodrich& Rosati (WSG&R) has suddenly been thrust into the spotlight, first, for counselling many of the technology firms now under scrutiny for backdating stock options (and in some cases, serving on their boards); and more recently, as outside counsel to Hewlett-Packard (HP), for initially defending the board’s dubious investigative practices.
WSG&R boasts 600 lawyers and represents around half of Silicon Valley’s public companies, includingApple, Sun Microsystems and Google. Last year it ranked first in private-equity and venture-capital deals, with nearly twice as many as its closest rival. Over the past five years WSG&R has worked on over 1,000 mergers and acquisitions, collectively worth over $260 billion.
The recent troubles cast a shadow over WSG&R’s reputation.Although Mr. Sonsini is not accused of wrongdoing himself, many of his firm’s clients are on the ropes. Former executives atBrocadeCommunications suffered criminal charges in July. Mr. Sonsini served onBrocade’s board until last year and his firm was its outside counsel. He also was on the boards of Pixar,Echelon, Lattice Semiconductor, LSI Logic and Novell-all firms at which the issuing of stock options is being called into question.
WSG&R dismisses the idea that Mr. Sonsini faced a conflict of interest by acting as both director and legal adviser to so many firms and says he did not advise HP in its investigation of board members. Mr. Sonsini initially said it was "well done and within legal limits". It now seems it was neither.
2题:{{B}}Text 3{{/B}}
The author’s attitude toward Mr. Sonsini’s remarks is ______.A.sceptical
B.indifferent
C.biased
D.sympathic
【单选题】:      
3题:设a1,a2,a3,a4,a5是4维向量,下列命题中正确的是
A、如果a1,a2,a3,a4,线性相关,那么k1,k2,k3,k4不全为0时,有k1a1+k2a2+k3a3+k4a4=0.
B、如果a1,a2,a3,a4线性相关,那么当k1a1+k2a2+k3a3+k4a4=0时,有k1,k2,k3,k4不全为0.
C、如果a5不能由a1,a2,a3,a4线性表出,那么a1,a2,a3,a4必线性相关.
D、如果a1,a2,a3,a4线性相关,那么a5不能由a1,a2,a3,a4线性表出.
【单选题】:      

4题:
Directions:
Read the following text carefully and then translate the underlined segments intoChinese.
Now, don’t get me wrong-I know it’s not my place to tell women when they can and can’t have children and how many they can have. I can testify that it’s hard to be childless at 36. 46. {{U}}People ask you all the time if you’re going to start a family-as if you didn’t already know that your biological clock was winding down. {{/U}}What’s worse, they begin lecturing you on fertility options as if to say, "Since it’s clear that you can’t catch a partner, you’d better do this on your own. " I can’t imagine what that feels like when you’re 66. It must be very painful.And trust me, I’m equally aghast when men have children in their 70s and 80s ( SaulBellow was 84 when his fifth child was born). 47.{{U}}I’m just saying that sometimes for the sake of the children-to-be, we may have to put away our longings and grieve for the children we might have had rather than go to the ends of the earth to get them.{{/U}} The death of a parent can cause young children to suffer disproportionately from depression, posttraumatic stress disorder, and drug abuse in their later years, according to studies published in theArchives of Pediatric andAdolescent Medicine and TheAmerican Journal of Psychiatry. I think parents should take that into account when they’re planning a family.And yes, I know I could drop dead tomorrow; life gives no one guarantees.AfterBousada de Lara died, Sarah Vine wrote a commentary for The Times of London, which concluded, "No one thinks more carefully about having a child than the person who, through misfortune, or trauma or simply because they happen to appreciate the work of Judy Garland, cannot do so by natural means. " That may be true, it certainly feels true, but we have to think about the children, not just having them.
As it is, I worry that I’m too old to raise a kiD、I squandered too much of my energy partying in my 20s. I should have had children when I didn’t need sleep and had a much more cavalier attitude about my career. Of course, when I was in my 20s, I had very little patience and even less serf-control, so maybe that time wouldn’t have been any better. There’s never a perfect time for a kid, and I respect that.But just as we worry about teenagers having children, I also worry about kids born to elderly parents.Are they being shortchanged Won’t they miss having grandparents to spoil them Maybe not-there are millions of ways for children to be happy. They don’t have to be part of a traditional nuclear family. Nor does there need to be a mommy and a daddy ; they can have a couple of mommies or just a daddy. 48.{{U}}Just somebody or somebodies to give them a sense of permanent attachment and security- someone to count on when you skin your knee or experience your first heartbreak or do badly on an exam, someone to throw your graduation cap to. {{/U}}Even on the cusp of 40, I speak to my parents almost every day, and I’m as dependent on their help as I ever was. 49.{{U}}There are probably some of you reading this now who think I’m too old to raise a baby into adulthooD、But, I do have actuarial tables on my side.{{/U}}
I have a hunch that cases like that ofBousada de Lara and, of course, Octomom, are going to force fertility clinics to establish more rules about who can use their services and under what circumstances. Just as public outrage brought a uniform set of requirements for people to adopt or contract a surrogate mother, there is already a push to further regulate fertility clinics. 50.{{U}}Like it or not, once we turn to others to facilitate the conception of our families, we become subject to their morals and ethics as well.., and maybe that’s not always a bad thing.{{/U}}
【分析题】:

5题:中国共产党在新民主主义革命的不同时期建立过不同政权形式,而对地主阶级态度差别最大的两种政权形式是
A.工农民主政权与苏维埃政权
B.工农民主政权与“三三制”政权
C.人民民主专政与苏维埃政权
D.工农民主政权与人民民主专政
【单选题】:      

6题:常模团体是()
A.服从正态分布的人群
B、参加某测试的志愿者
C.接受常规训练的被试团体
D、具有某种特征的抽样团体
【单选题】:      

7题:

【分析题】:

8题:药物与特异性受体结合后,可能激动受体,也可能阻断受体,这取决于
A.药物的作用强度
B.药物是否具有亲和力
C.药物的剂量大小
D.药物的脂溶性
E.药物是否具有内在活性
【单选题】:        

9题:
A.possible
B.it possible
C.impossible
D.us possible
【单选题】:      

10题: 新民住宅小区扩建后,新搬入的住户纷纷向房产承销公司投诉附近机场噪声太大令人难以忍受。然而,老住户们并没有声援说他们同样感到噪声巨大。尽管房产承销公司宣称不会置住户的健康于不顾,但还是决定对投诉不准备采取措施。他们认为机场的噪声并不大,因为老住户并没有投诉。下列哪项如果为真,则最能表明房产承销公司对投诉不采取措施的做法是错误的
A.房产承销商们的住宅并不在该小区,所以不能体会噪声的巨大危害。
B.有些老住户自己配备了耳塞来解决这个问题,他们觉得挺有效果的。
C.老住户觉得自己并没有与房产承销商有什么联系,也没有太大的矛盾。
D.老住户认为噪声并不巨大而没有声援投诉,是因为他们的听觉长期受噪音影响已经迟钝失灵。
【单选题】:      

 

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