首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 Some Schooling on BackpacksAccording to the U.S.Consumer Product Safety...
共用题干 Some Schooling on BackpacksAccording to the U.S.Consumer Product Safety...
admin
2020-12-24
29
问题
共用题干
Some Schooling on Backpacks
According to the U.S.Consumer Product Safety Commission,5,900 kids were treated at hospital emergency rooms,clinics,and doctors'offices last year for sprains(扭伤)and strains caused by backpacks.Such injuries are so widespread that more than 70 percent of physicians surveyed by the American Academy of Orthopedic(整形外科的)Surgeons listed backpacks as a potential clinical problem for children.
How do you avoid such problems? Choose bags that have wide , padded straps(有垫的背带)and abelt.That will help transfer some of the weight from the back and shoulders to the hips.You should alsotighten both straps firmly,so the pack rests about 2 inches above your waist.Also,remember to pack yourbag with the heaviest items closest to your back and to bend both knees when you pick it up.
How much should you stuff into your pack?That depends on your size and strength,but a general ruleis not to exceed 20 percent of your body weight.So if a child weighs 100 pounds,the backpack and its loadshould not be more than 20 pounds.One hint : Make frequent trips to your locker(储物柜)to exchangebooks between classes.
Backpacks with wheels let you pull the weight along the ground,but they have problems too.Many arelarger than the average shoulder bag,so students are tempted to carry more than they would in a conventionalpack.
Roller bags often don't fit into a locker.They can also lead to tripping and falls in crowded halls.
Whatever you use,10 or 15 minutes of stretching and back strengthening is a good idea.
选项
A 10-1 5 minutes'exercise will help you bear a heavier backpack.
A:Right
B:Wrong
C:Not mentioned
答案
A
解析
由文章第一段第一句可知,根据统计,去年美国有5 900个孩子因为由背带书包引起的扭伤及拉伤而接受治疗,故题干表述正确。
文章第一段最后一句中关于此处的表述背景是在美国,而题干中是英国,并且此处的70%指的是占接受调查医生总数中的比例。故题干描述错误。
由文章第二段中第二句和第三句可知,选择一个带有背带垫和腰带的背包有助于把背包的一部分重量从肩部和背部转移分担到臀部。
由文章第三段第三句可知,如果一个孩子体重为一百磅,那么他的背包负重不应超过 20磅。
由文章第三段最后一句可知,文章给出的建议是经常去储物柜调换不同科目用的课本,而不是将所有的课本都放人储物柜里。
文章第四段第二句中提到很多拉杆式书包比普通有肩带的背包要大,但并未提到其重量。
由文章最后一段最后一句可知,10到15分钟的拉伸和背部强化锻炼会是很不错的方法,故题干描述正确。
转载请注明原文地址:https://ti.zuoweng.com/ti/FYEQKKKQ
相关试题推荐
Inordertoimproveourstandardofliving,wehavetoaccelerateproduction.()A
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 TheJoyofLivingAloneMoreandmoreAmericansarelivingalone.Someli...
随机试题
下列各项中,不属于投资性房地产项目的是()。 A、已出租的土地使用权 B、企
下列灭火器中,不适合扑救A类火灾的是( )
下列吗啡的叙述不正确的是
建筑工程一切险中物质损失的除外责任有()。
按资金来源划分,个人住房贷款可分为( )。
下列有关医学道德监督的叙述正确的是A.通过制度监督来发挥惩恶扬善的宣传、导向作用B.通过法律监督来约束医务人员职业行为C.通过自我监督来促使医院医务、政务公
牙外伤露髓后的即刻牙髓组织损伤不可能包括A.牙髓充血B.牙髓出血C.牙髓感觉丧失D.牙髓感染E.牙髓坏死
国内铁路运输的优点不包括()。A:运行速度较快B:安全性高,损耗率低C:运输成本较低D:运输能力大
关于财产保险,下列说法中错误的是()。A:财产保险按保险期间的不同分为定期保险和不定期保险B:在定期保险中保险期间超过2年期的为长期保险C:保险期间一经确定
甲公司的记账本位币是人民币,按季计算汇兑损益,对外币交易采用交易日即期汇率折算。2×11年7月1日,从中国银行借入1000万欧元,年利率为8%,期限为3...