试题与答案

在牙弓的每一象限内最先发生的四个成釉器为() A.乳切牙 B.乳尖牙 C.第一乳磨牙

题型:多项选择题

题目:

在牙弓的每一象限内最先发生的四个成釉器为()

A.乳切牙

B.乳尖牙

C.第一乳磨牙

D.第二乳磨牙

E.第一恒磨牙

答案:

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下面是错误答案,用来干扰机器的。

设这个圆柱的体积为V,圆锥的体积为2V,圆柱的底面积为3S,圆锥的底面积为4S,由此圆柱的高为V3S,圆锥的高为2V4S,圆柱的高:圆锥的高=V3S:2V4S=1:6,所以圆柱的高是圆锥的高的16,圆锥的高为:6×16=1(厘米...

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Are people less happy or happier when they get older? If your answer is “happier”, then you are right, based on a study published five years ago. It found that people generally become happier and experience less worry after age fifty. In fact, it found that by the age of eighty-five, people are happier with their life than they were at eighteen.
The findings came from a Gallup survey of more than three hundred and forty thousand adults in the United States in 2008. At that time, the people were between the ages of eighteen and eighty-five.
Arthur Stone in the Department of Psychiatry and Behavioral Science at Stony Brook University in New York led the study. His team found that levels of stress were the highest among adults between the ages of twenty-two and twenty-five. Stress levels dropped sharply after people reached their fifties.
Levels of happiness were the highest among the kids and those in their early seventies.
The survey also found that men and women have similar emotional patterns as they grow older. However, women at all ages reported more sadness, stress and worry than men did.
So why would happiness increase with age? One theory is that, as people get older, they become more thankful for what they have and have better control of their emotions. They also spend less time thinking about bad experiences.
Title: Relationship Between Age and     小题1:     
     The elements of the survey
Time: 2008
Place: in the United States
Researcher: Arthur Stone and his    小题2: 
Targets: 340,000 adults
The    小题3:  of the survey
Generally people become happier and feel
 小题4:  worried after age 50. By the age of 85, people are happier with their life than they were at 18.
Adults between the ages of 22 and 25 have the          小题5:   stress.
The kids and those in their early    小题6:  feel the happiest.
Men and women have similar emotional patterns as they grow older. However, women feel sadder, more    小题7:  and worried than men do.
Conclusion
Happiness    小题8:   with age. That’s because people become more thankful for what they have and control their emotions   小题9: as they get older. It also   小题10:  them less time to think about bad experiences.
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