第四题咋做,明天交的,好人帮帮忙,

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• 1【C7】A．evidenceB．threatC．riskD．hint

  【C7】

  A．evidence

  B．threat

  C．risk

  D．hint

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• 2这题极限怎么求呢?求详细求解过程~~
  这题极限怎么求呢?求详细求解过程~~
  
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• 3【C4】A．tossB．flingC．heaveD．hurl

  【C4】

  A．toss

  B．fling

  C．heave

  D．hurl

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• 41由声源发出的声音是通过
  1由声源发出的声音是通过
  
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• 5Honesty is a virtue, and telling a lie is morally wrong. But how can you【C1】______ if some

  Honesty is a virtue, and telling a lie is morally wrong. But how can you【C1】______ if someones lying？ The answer is, theyre probably not. Traditional economics says that people are【C2】______ beings who will lie if its【C3】______their advantage. A recent university study has shown that, actually, were pretty honest— especially when were at home. Researchers in Germany phoned people at home and asked them to【C4】______a coin. There was a strong financial【C5】______to fake the result: if the coin landed tails-up, the participant would receive money or a gift【C6】______, while if the coin landed heads-up, they would get nothing. Because they were on the phone, they knew there was no【C7】______of getting caught if they lied. And yet people revealed the truth【C8】______they would receive nothing. Over hundreds of tosses a coin will land tails-up【C9】______50% of the time. In this study over half the people(55. 6%)asked said that the coin landed heads-up. Most of diem didnt pursue the reward at the【C10】______of honesty. Previous studies had found mat people were more【C11】______. In those laboratory studies 75% of people,【C12】______some who faked the results, reported a winning coin and claimed a reward. So me research team【C13】______ its being in our own home which makes us play fair.【C14】______, what motivates people to do so remains【C15】______. In fact, both types of study show people are surprisingly【C16】______. Even in me laboratory, 25% of people【C17】______a reward by telling the truth. The researchers say this is because honesty is highly valued and people deem honesty is me【C18】______for doing everything well. We care about our reputation and our sense of ourselves as【C19】______people. So lying has a psychological cost and it seems mis cost【C20】______ the financial benefits of lying.

  【C1】

  A．conceive

  B．deceive

  C．conceit

  D．perceive

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• 6两块相同的木块,从同一高度同时落下,下落途中一木块被水平飞来的子弹击中,并留在其中,问两块木块是否同
  两块相同的木块,从同一高度同时落下,下落途中一木块被水平飞来的子弹击中,并留在其中,问两块木块是否同时落地?为什么?
  
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• 7题为：(m^2-m)x^2-x-1
  题为：(m^2-m)x^2-x-1
  
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• 8误食毒蕈中毒，可选用何药解救？A、毛果芸香碱B、阿托品C、碘解磷定D、去甲肾上腺素E、新斯的明

  误食毒蕈中毒，可选用何药解救？

  A、毛果芸香碱

  B、阿托品

  C、碘解磷定

  D、去甲肾上腺素

  E、新斯的明

  请帮忙给出正确答案和分析，谢谢！

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• 9研究用某药治疗矽肺病人，估计用药前后尿矽排出量平均增加46.7mmol／L，其标准差为42.4mmol／L，计算

  研究用某药治疗矽肺病人，估计用药前后尿矽排出量平均增加46.7mmol／L，其标准差为42.4mmol／L，计算该研究需要的样本量时，要求α=0.05，β=0.10，则检验效能为

  A、0.95

  B、0.90

  C、0.85

  D、0.10

  E、0.05

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• 10一元二次不等式的参数取值问题.
  一元二次不等式的参数取值问题. 
  
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