生物科学专业考研在医学方向上有哪些可以选择

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 time needed in making decisions may_____

A.vary according to the urgency of the situation
B.prove the complexity of our brain reaction
C.depend on the importance of the assessment
D.predetermine the accuracy of our judgment

如果一个人只为自己劳动，他也许能成为著名学者、大哲人、卓越诗人、然而他永远不能成为完美无暇的伟大人物。如果我们选择了最能为人类福利而劳动的职位，那么，重担就不能把我们压倒，因为这是为大家而献身；那时我们所感到的就不是可怜的、有限的、自私的乐趣。我们的幸福将属于千百万人，我们的事业将默默地、但是永恒发挥作用地存在下去，向面对我们的骨灰，高尚的人们将洒下热泪，根据以上陈述，可以得出以下哪项？

A.如果一个人只为自己劳动，不是为大家而献身，那么重担就能将他压倒。
B.如果我们为大家而献身，我们的幸福将属于千百万人，面对我们的骨灰，高尚的人们将酒下热泪。
C.如果我们没有选择最能为人类福利面福利而劳动的职业。我们所感到的就是可怜的、有限钓、自私的乐趣。
D.如果选择了最能为人类福利而劳动的职业，我们就不能够成为著名学者、大哲人、卓越诗人，而且还能多成为完美无瑕的伟大人物。

对生长激素的分泌起经常性调节作用的是
A. GHRH B. GHIH C.低血糖 D.血中氨基酸增多