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Do your spirits soar (猛增) on a sunny day? Do you relax at the sound of flowing water? Some scientists suggest that these contacts with nature are good for your health. In one study, hospital patients with a view of trees had shorter hospital stays and less need for pain medications. Another study indicated that prisoners with a view of the outdoors had fewer doctor visits. “Why do we desire nature? Maybe we’re programmed to need it, since our ancestors’ survival was so dependent on their connection with nature,” suggests biologist E.O. Wilson. Want to find out if contact with nature improves your outlook on life? Try a few of these ideas. Hang out a bird feeder and watch the birds that visit it. Sit down in the backyard or a nearby park. Close your eyes. What do you hear? Birds singing? The wind in the trees? Crickets (蟋蟀) chirping? Find an anthill. Sit down and watch the ants work. Take a walk right after a rainstorm. What looks different? Smells different? Go barefoot on a sandy beach. Open the curtains and the window, if the weather allows it. On a windy day, watch the trees. Go to a creek, river or park fountain. Listen to the sound of water in motion. Camp out in the backyard or at a nearby state park. Use a tent or sleep on the ground. Find a wide-open space to study the stars. Learn about the different constellations (星座). Raise a garden. Or plant some seeds in a flowerpot. Go hiking with your family. Talk about all of the colors you see in nature. Take a camera and capture your nature experience. 小题1:From Paragraph 2 we can learn that ______. A.prisoners don’t like to go to the doctor when ill B.trees can be used as pain medications C.prisoners should often get out of prison to come into contact with nature D.contacts with nature are very helpful for hospital patients 小题2:According to E.O. Wilson, we desire nature probably because ______. A.it can help us feel relaxed B.we have inherited (继承) from our ancestors who were dependent on nature C.people have lived with nature for thousands of years D.contacts with nature can improve a person’s outlook on life 小题3:The author gives us many ideas in order to let us ______. A.find out if contacts with nature improve our outlook on life B.hear birds sing and watch ants work C.talk about the colors we see in nature D.capture our experience in nature 小题4:From the passage, we can learn that ______. A.studying the constellations is important to everyone B.you can know all the colors only by going hiking C.nature is quite important to us D.walking in a rainstorm can be very helpful 小题5:What is the best title of the passage? A.Go hiking with your family. B.Let nature nurture you. C.Visit your doctor less. D.Watch the trees more often.
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举一反三
【单选题】下列说法错误的是( )。
A.
抽样误差只存在于概率抽样中
B.
非抽样误差只存在于非概率抽样中
C.
无论是概率抽样还是非概率抽样都存在非抽样误差
D.
在全面调查中也存在非抽样误差
【单选题】与管片式散热器芯相比,管带式的散热能力强,制造简单,质量轻,成本低,但结构刚度差 , 下图( )是管带式散热器。
A.
A
B.
B
C.
C
D.
D
【单选题】( )是个体缺乏某种东西时的一种主观状态,它是客观需求的反映。
A.
需要
B.
动力
C.
满足
D.
期盼
【多选题】一般而言,总误差由抽样误差和非抽样误差构成,其中抽样误差的表现形式有
A.
抽样实际误差
B.
登记性误差
C.
抽样标准误
D.
抽样极限误差
E.
系统性误差
【单选题】与管片式散热器芯相比,管带式的散热能力强,制造简单,质量轻,成本低,但结构刚度差,下图(           )是管带式散热器。
A.
B.
C.
【单选题】诱发肺心病心功能失代偿期的最常见原因是
A.
过度劳累
B.
补液过快
C.
摄盐太多
D.
呼吸道感染
E.
心律失常
【单选题】诱发肺心病失代偿期的最常见原因是
A.
呼吸道感染
B.
过度劳累
C.
补液过快
D.
摄盐太多
E.
心律失常
【判断题】"首字下沉"命令按钮是在"插入"选项卡中。
A.
正确
B.
错误
【单选题】抽样误差与非抽样误差的性质不同,非抽样误差()
A.
有系统性
B.
无系统性
C.
不会因为样本量的增大而减小
D.
A和C的说法正确
【单选题】误差从来源可以分为()。
A.
量测误差与计算误差;
B.
抽样误差和非抽样误差;
C.
过失误差、系统误差和偶然误差;
D.
量测误差和系统误差
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