首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Fifty volunteers were alphabetically divided into two equal groups, Group A to participate in a 7 week exercise program, and Gro
Fifty volunteers were alphabetically divided into two equal groups, Group A to participate in a 7 week exercise program, and Gro
admin
2010-01-10
79
问题
Fifty volunteers were alphabetically divided into two equal groups, Group A to participate in a 7 week exercise program, and Group B to avoid deliberate (故意的,蓄意的) exercise of any sort during those 7 weeks. On the day before the exercise program began, all 50 men participated in a step-test. This consisted of stepping up and down on a 16-inch bench at 30 steps a minute for 5 minutes. One minute after completion of the step-test, file pulse rate of each subject was taken and recorded. This served as the pretest for tile experiment. For the next 7 weeks, subjects in the experimental group (Group A) rode an Exercycle (a motor-driven bicycle-type exercise machine) for 15 minutes each day. The exercise schedule called for riders to ride relaxed during the first day’s ride, merely holding on to the handle bars and foot pedals as tile machine moved. Then, (or the next 3 days, they rode relaxed for 50 seconds of each minute, and pushed, pulled, anti pedaled actively for 10 seconds of each minute. The ratio of active riding was increased every few clays, so that by the third week it was half of each minute, and by the seventh week the riders were performing 15 solid minutes of active riding.
At the end of the 7 weeks, the step-test was again given to both groups of subjects, and their pulses taken. The post-exercise pulse rates of subjects in the experimental group were found to have decreased an average of 30 heart beats per minute, with the lowest decrease 28 and the highest decrease 46. The pulse rates of subjects in the control group remained the same or changed no more than 4 beats, with an average difference between the initial and final tests of zero.
What did Group A do in their program?
选项
A、They stepped up and down on a bench each day.
B、They pushed and palled on exercise handles every day.
C、They rode on an Exercycle every day.
D、They were kept away from any exercise.
答案
C
解析
第一段从第6句开始,全是描述A组在训练计划中的活动; A)项是错误的,因为在训练中,他们根本没有跳台阶的内容; B)项讲他们每天推拉车把,这并不能准确反映A组全部训练活动的内容; 实际上,他们每天都在骑健身车,因此C)项正确
转载请注明原文地址:https://kaotiyun.com/show/ZDt7777K
0
大学英语四级
相关试题推荐
A、Tomakefriendsthroughgroups.B、Tolearnmoreaboutotherpeople’sideas.C、Toofferachancetodiscusswithaspecialist.
A、Thelocalnewspaper.B、TheTVprogrammeonSaturday.C、TheSundaymagazine.D、TheradioprogrammeonSaturday.AWhatisthebe
Thispassageismainlyaboutsomesocialandculturalchangesof1970sand1980s.Inthe1980s,theprogramonwhichpeopletal
Formanygroupsofpeoplethebattleforliberty,civilrights,andequalaccesshasbeenhardfight.Thisincludespeoplewhoa
A、Heisanactivesportsman.B、Heisakeencyclist.C、Heenjoysplayingbaseball.D、Heexercisesregularly.DWhatdoyouknowa
Whatwasthejobofasoundeffectseditor?Thesoundeffectspersonofradioprogrammestriedtocreateeverynecessarysound
随机试题
试就下面一组词进行义素分析。伯伯叔叔姑姑
对于读者而言,文学作品要成为有意义的接受客体,必须具备的条件包括【】
空间电荷补偿的实现是通过改变
患者女性,45岁。发现右乳房无痛性肿块6d,对侧乳房正常。体格检查发现右乳房外上象限可扪及2.5cm~2.5cm肿块,质硬,活动度不大,可能的诊断是()
背景材料:Word文档输出打印是建筑工程资料形成的重要部分,打印的文档如果不全或不符合规定,将无法进行归档,同时也会给资料员工作带来不便,所以在应用Word软件打印设置时,应确保页面设置完整,文档打印准确。页面设置对话框中,不包括()。
上市公告书、年度报告、中期报告在编制完成后,应放置于下列哪些地点供公众查阅()
甲贩运假烟,驾车路过某检查站时,被工商执法部门拦住检查。检查人员乙正登车检查时,甲突然发动汽车夺路而逃。乙抓住汽车车门的把手不放,甲为摆脱乙,在疾驶时突然急刹车,导致乙头部着地身亡。甲对乙死亡的心理态度属于( )。
应用市盈率模型评估企业的股权价值,在确定可比企业时需要考虑的因素有()。(2009年新制度)
MillionsofAmericanslackhealthinsuranceand,withtheeconomyfloundering,thatislikelytoincrease,theNationalAcademy
TheHouseofLordsoftheU.K.iscomposedof______and______.
最新回复
(
0
)