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 weeks exercise program, and Gr
Fifty volunteers were alphabetically divided into two equal groups, Group A to participate in a 7 weeks exercise program, and Gr
admin
2015-12-31
20
问题
Fifty volunteers were alphabetically divided into two equal groups, Group A to participate in a 7 weeks exercise program, and Group B to avoid deliberate 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, the pulse rate of each subject was taken and recorded. This served as the pretest for the 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 the machine moved. Then, for the next 3 days, they rode relaxed for 50 seconds of each minute, and pushed, pulled, and pedaled actively for 10 seconds of each minute. The ratio of active riding was increased every few days, 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 pulled on exercise handles every day.
C、They rode on an Exercycle every day.
D、They refrained from any exercise.
答案
C
解析
这同样是一道细节题。文中第一段第六句说:“在接下来的七周内,此次实验小组(小组A)的实验对象每天要在健身脚踏车上骑上15分钟。”故选项C正确。解答这一问题的关键是要结合文章的主题思想,确定出对两个实验小组的计划安排。
转载请注明原文地址:https://kaotiyun.com/show/P7WO777K
0
在职攻硕英语联考
相关试题推荐
Thewriterregardsphysicalexerciseasastrongmedicinebecause______.Manypeopledonotengageinphysicalexercisemainly
Theresearchscientistsoftenmeetwithproblems_____newtypesofinstrumentfortheirsolution.
Inthispassage,scientistswarnof______.Accordingtothepassage,inthelongrun,abruptclimatechange______.
Inthispassage,scientistswarnof______.Oneofthemostimmediatedangersposedbyabruptclimatechangeis______.
Inthispassage,scientistswarnof______.Abruptclimatechange______.
He______themeeting,butuponlearningthattheywoulddiscusssomethingirrelevanttohisfieldofstudy,hedroppedtheidea.
ThelargesizeandroughlycircularshapeofthePacificmadesomescientiststhinkthatit______aholeleftwhenthemoonsep
It’satypicalSnoopycard;cheerfulmessage,brightcolors,thoughalittleyellowandfadednow.ThoughI’vereceivedfancier,
Foryearswehavebelievedwewereeitherhealthyorsick.【51】,duringthemid-1990s,scientistsdevelopedanewconceptcalled
Foryearswehavebelievedwewereeitherhealthyorsick.【51】,duringthemid-1990s,scientistsdevelopedanewconceptcalled
随机试题
患者男,20岁,10岁时右眼外伤后曾行“白内障抽吸术联合人工晶状体植入术”,近1年发现视力下降就医,眼部检查:右眼视力0.2,角膜透明,前房深,人工晶状体在位,后囊膜下混浊。眼底隐约可见。正确的诊断是
排卵期的确定依据是
律师资格的取得方式有哪些?()
为了限制330kV、500kV系统中在线路合闸和重合闸时产生的过电压,最有效的措施是什么?
2020年1月1日,甲公司购入乙公司80%股权(非同一控制下控股合并),能够对乙公司的财务和经营政策实施控制。除乙公司外,甲公司无其他子公司。当日乙公司可辨认净资产公允价值为2000万元。2020年度乙公司以购买日可辨认净资产公允价值为基础计算实现的净利润
根据《会计法》规定,下列各项中,属于出纳人员不得兼管的工作有()。
甲企业于2×13年7月1日向A银行举借五年期的长期借款,在2×17年12月31日的资产负债表中,下列假定项目中,该项长期借款应作为流动负债列报的有()。
行政诉讼强制的主体是()。
左边给定的是纸盒的外表面,下面哪一项能由它折叠而成?
Thisstoryisn’tinteresting,so______studentsliketoreadit.
最新回复
(
0
)