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
31
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
综合所得,适用的个人所得税税率为()。 A、20%的比例税率 B、3%~45
(113-114题共用备选答案) A.异常活动 B.肿胀疼痛 C.功能障碍
建设工程监理的理论基础是()。
关于财政政策的基本功能的说法,正确的是()。
你收到学生爱慕情书,你怎么办?
传统简历调查与档案考核的测评手段,具有信息量小、科学性差、缺乏预测性的缺点,采用()的方式进行简历分析可以弥补这一不足。A.心理测试B.要素比较法C.背景调
石韦的功效是A.利水通淋B.利水渗湿C.利尿通淋,清肺止咳,凉血止血D.利水消肿E.利湿退黄,止痒
胃结核伴脊柱活动A.非手术抗结核治疗B.积水肾造瘘术C.抗结核治疗后双肾移植D.胃大部切除术后抗结核治疗E.脊柱矫形术
呈不规则形小块,表面棕红色至暗棕红色,有的可见圆形突起或凹窝状的饮片是A.自然铜B.赭石C.雄黄D.煅炉甘石E.生石膏
常用的信度评估系数不包括()系数。A:稳定B:外在一致性C:等值D:内在一致性