2021年考研政治模拟题之建设中国特色社会主义政治（六）

王先生对财富w的效用函数为lnw，他目前有1万元，他的地里可以种植某种作物，旁边有条小河，有10%的概率可能发生灾害，发生灾害了就会颗粒无收，如果没有发生灾害就会得到两倍的毛收益，问： (1)王先生会投资多少？ (2)有提供竞争性保险的保险公司，保费是多少？

Text 1 Giant corporations often claim to be"green,"pointing to programs they've undertaken aimed at being environmentally conscious.But sometimes these efforts don't really amount to much.They can be no more than'igrcenwashing,"a public relations effort that doesn't represent any fundamental shift in thinking.But such a change may actually be going on among several of the world's largest fossil fuel companies,namcs such as ExxonMobil,Shell,and BP.One of the biggest reasons:pressure from the companies'sharcholdcrs.Investors arc asking corporations to make more transparent the effects climate change will have on their businesses,as well as explain what they are doing to reduce their greenhouse gas emissions.While sharcholdcr motivcs are cerlainly aimed at helping in the worldwide fight against global warming,they also represent a practical need to better understand a company's prospects.If the burning of oil and gas is grcaily curtailed as a result of the December 2015 intemational Paris climate agreement,for example,how might that affect the bottom line of a corporation whose chief source of revenue is extracting and selling carbon-emitting oil and gas?Or,conversely,how is a company planning to take advantage of the business opportunities that emerge from a shift away from fossil fuels?Climate Action 100+,for example,is a shareholder action group that is asking corporations to make stronger commitments to meeting the 80 percent cut in carbon emissions proposed by the Paris agreement signed two years ago by nearly 200 nations.Some 225 investment groups who manage more than S26.3 trillion have signed on in support.Last week,intemational energy giant ExxonMobil said it will step up its reporting to shareholders and the public about the impacts climate change will have on its business,including any expected increased risks.The new policy follows a vote by ExxonMobil investors at the company's annual meeting in May that called for a yearly assessment of the effects of climate change on the company.The new position represents a sea change for ExxonMobil,which until the early 2000s had disputed the need to take action on climate change.Around the world national govemments are shaping new policies in an effort to reduce greenhouse gas emissions to a level that will not allow global temperatures to rise more than 2 degrees Celsius.In the U,S.,individual states and cities are pursuing lawsuits against companies that fail to deal responsibly with greenhouse gas emissions,which they contend harm the public.22.Which of the following is right about shareholders?

A.They explained their steps to reduce greenhouse gas emissions.
B.They are reluctant to help fight against global warming.
C.They have made some corporations'thought changed.
D.They pointed out their understanding of companies'prospects.

男性，45岁。半个月来发现双颈部进行性无痛性淋巴结肿大伴发热。查体：T38.5°C，除发现双侧颈部各有一个2cmX 1cm大小淋巴结外，右腋下有一个1. 5cmX 1. 5cm大小淋巴结，均无压痛，其余浅表淋巴结未触及肿大；腹软，无压痛，肝脾未触及。行右颈 部淋巴结活检诊断为非霍奇金淋巴瘤（NHL)。
该患者的临床分期属于
A. ⅡA B.ⅢB
C. ⅡA D. ⅢB

患者，女,34岁。因1个月来发热、乏力、咳嗽，1天来左眼突然失明来院。既往有心 脏杂音。查体：体温37.9。C，脉率96次/分,血压128/75mmHg,左眼视力消失，双肺（-),心界不大，心尖部3/6级收缩期吹风样杂音，肝未及，脾肋下可及。化验:Hb96g/L，WBC12.8X109/L,尿蛋白（±)，镜检 RBC1~3 个/HP。
对该患者最可能的诊断是
A.肺结核 B.缺铁性贫血 C.急性肾小球肾炎 D.感染性心内膜炎