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某产品去年涨价10%,今年又涨价20%,则该产品这两年涨价().
A.15%
B.16%
C.30%
D.32%
E.33%

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Text 2 No wonder they are called"patients".When people enter the health-care systems of rich countries today,they know what they will get:prodding doctors,endless tests,rising costs and,above all,long waits.Some stoicism will always be needed,because health care is complex and diligence matters.But frustration is boiling over.This week three of the biggest names in American business-Amazon,Berkshire Hathaway and JPMorgan Chase-announced a new venture to provide better,cheaper health care for their employees.A fundamental problem with today's system is that patients lack knowledge and control.Access to data can bestow both.The intemet already enables patients to seek online consultations when and where it suits them.Yet radical change demands a shift in emphasis,from providers to patients and from doctors to data.That shift is happening.Technologies such as the smartphone allow people to monitor their own health.The possibilities multiply when you add the crucial missing ingredients-access to your own medical records and the ability easily to share information with those you trust.That allows you to reduce inefficiencies in your own treatment and also to provide data to help train medical algorithms.As with all new technologies,pitfalls accompany the promise.Hucksters will launch apps that do not work.But with regulators demanding oversight of apps that present risks to patients,users will harm only their wallets.Not everyone will want to take active control of their own health care;plenty will want the professionals to manage everything.The benefits of new technologies often flow disproportionately to the rich.Those fears are mitigated by the incentives that employers,govemments and insurers have to invest in cost-efficient preventive care for all.Other risks are harder to deal with.Greater transparency may encourage the hale and hearty not to take out health insurance.They may even make it harder for the unwell to find cover.Will the benefits ofmaking data more widely available outweigh such risks?The signs are that they will.Plenty of countries are now opening up their medical records,but few have gone as far as Sweden.It aims to give all its citizens electronic access to their medical records by 2020;over a third of Swedes have already set up accounts.Studies show that patients with such access have a better understanding of their illnesses,and that their treatment is more successful.Trials in America and Canada have produced not just happier patients but lower costs,as clinicians fielded fewer inquiries.That should be no surprise.No one has a greater interest in your health than you do.Trust in Doctor You.
People may know their health condition better by using technology if_____
A.their medical records are available
B.they accept medical algorithms training
C.data is paid much more attention
D.health-carc institutions trust you
已知x2-5∣x+1∣+2x-5=0,则x的所有取值的和为
A.2
B.-2
C.0
D.1
E.-1
一个产品要畅销,产品的质量和经销商的诚信缺一不可。以下各项都符合题干的断定,除了?
A.一个产品滞销,说明它或者质量不好,或者经销商块乏诚信
B.一个产品,只有质量高并且由诚信者经销,才能畅销
C.一个产品畅销,说明它质量高并有诚信的高
D.一个产品,除非有高的质量和诚信的经销商,否则不能畅销
E.一个质量好并且由诚信者经销的产品不一定畅销
某网络公司通过问卷对登录“心理医生之窗”网站寻求心理帮助的人群进行调查。结果显示:持续登录“心理医生之窗”网站6个月或更长时间的人群中,46%声称与“心理医生之窗”网站的沟通与交流使他们心情变得好多了。因此,更长时间登录“心理医生之窗”网站比短期登录会更有效改善人们的心理状态。以下哪项如果为真,最能削弱上述论断?
A.持续登录该网站6个月以上的人群中,10%的人反映登录后心情变得更糟了。
B.持续登录该网站6个月以上的人比短期登录的人更愿意回答问卷调查的问题。
C.对“心理医生之窗”网站不满意的人往往是那些没有耐心的人,他们对问卷调查往往持消极态度。
D.登录网站获得良好心情的人会更积极地登录,而那些感觉没有效果的人往往会离开。
E.登录“心理医生之窗”网站不足半年的人多于登录该网站6个月以上的人。
Text 3 Scientists have found that although we are prone to snap overreactions,if we take a moment and think about how we are likely to react,we can reduce or even eliminate the negative effects of our quick,hardwired responses.Snap decisions can be important defense mechanisms;if we are judging whether someone is dangerous,our brains and bodies are hardwired to react very quickly,within milliseconds.But we need more time to assess other factors.To accurately tell whether someone is sociable,studies show,we need at least a minute,preferably five.It takes a while to judge complex aspects of personality,like neuroticism or openmindedness.But snap decisions in reaction to rapid stimuli aren't exclusive to the interpersonal realm.Psychologists at the University of Toronto found that viewing a fastfood logo for just a few milliseconds primes us to read 20 percent faster,even though reading has little to do with eating.We unconsciously associate fast food with speed and impatience and carry those impulses into whatever else we're doing.Subjects exposed to fastfood flashes also tend to think a musical piece lasts too long.Yet we can reverse such influences.If we know we will overreact to consumer products or housing options when we see a happy face(one reason good sales representatives and real estate agents are always smiling),we can take a moment before buying.If we know female job screeners are more likely to reject attractive female applicants,we can help screeners understand their biases—or hire outside screeners.John Gottman,the marriage expert,explains that we quickly“thin slice”information reliably only after we ground such snap reactions in“thick sliced”longterm study.When Dr.Gottman really wants to assess whether a couple will stay together,he invites them to his island retreat for a much longer evaluation;two days,not two seconds.Our ability to mute our hardwired reactions by pausing is what differentiates us from animals:doges can think about the future only intermittently or for a few minutes.But historically we have spent about 12 percent of our days contemplating the longer term.Although technology might change the way we react,it hasn't changed our nature.We still have the imaginative capacity to rise above temptation and reverse the highspeed trend.
The author's attitude toward reversing the highspeed trend is_____
A.tolerant
B.uncertain
C.optimistic
D.doubtful
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