职称英语考试

试题来源：2014年职称英语考试卫生类C级真题及答案
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 sprians(扭伤)and strains caused by backpacks. Such injunes are so widespread that more than 70 percent of physicians 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 a belt. That will help transfer some of the weight from the back and shoulders to the hips. You should also tighten both straps firmly, so the pack rests about 2 inches above your waist. Also, remember to pack your bag with the heaviest items closest to your back and to bend both knees when you pick it up.
I low much should you stuff into your pack? That depends on your size and strength, but a general rule is not to exceed 20 percent of your body weight. So if a child weights 100 pounds, the backpack and its load should not be more than 20 pounds. One hint: Make frequent trips to your locker(储物柜)to exchange books between classes.
Backpacks with wheels let you pull the weight along the ground,but they have problems too. Many are larger than the average shoulder bag, so students are tempted to carry more than they would in a conventional pack.
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.
16.About six thousand American kids were injured by carrying backpacks last year.
A. Right
B. Wrong
C. Not mentioned
17.70 percent of UK physicians have treated children with sprains and strains.
A. Right
B. Wrong
C. Not mentioned
18.Backpacks with wide, padded straps and a belt can help to avoid problems of sprains and strains.
A. Right
B. Wrong
C. Not mentioned
19.A 100-pound child should carry a backpack of more than 20 pounds.
A. Right
B. Wrong
C. Not mentioned
20.Children should put all the books in their lockers.
A. Right
B. Wrong
C. Not mentioned
21.Roller bags tend to be heavier than ordinary backpacks.
A. Right
B. Wrong
C. Not mentioned
22.A 10-15 minutes’exercise will help you bear a heavier backpack.
A. Right
B. Wrong
C. Not mentioned

试题出处：http://www.examtiku.com/shiti/66988167.html
网考网参考答案：B、B、A、B、B、C、A
网考网解析：进入考试题库查看解析
大数据分析：根据网考网与考试题库的统计分析，该试题：
23%的考友选择了A选项
30%的考友选择了B选项
47%的考友选择了C选项
考友解析与评论：
 · 我就纳闷了，为什么要选B、B、A、B、B、C、A
 · 审题不仔细
 · 这题不解，原来选B、B、A、B、B、C、A，感觉没错啊