首页
登录
职称英语
Fifty volunteers were alphabetically divided into two equal groups, Group A
Fifty volunteers were alphabetically divided into two equal groups, Group A
游客
2023-12-27
21
管理
问题
Fifty volunteers were alphabetically divided into two equal groups, Group A to participate【C1】______a 7-week exercise program, and Group B to avoid【C2】______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【C3】______of stepping up and down on a 16-inch bench【C4】______30 steps a minute for 5 minutes. One minute after completion of the step-test the pulse【C5】______of each subject was taken and recorded. This【C6】______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 15minutes each day. The exercise schedule【C7】______for riders to ride relaxed during the first day’s ride,【C8】______holding on to the handle bars and foot pedals【C9】______the machine moved.【C10】______, 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【C11】______every few days,【C12】______by the third week it was half of each minute, and by the seventh week the riders were【C13】______15 solid minutes of active riding.
【C14】______end of the 7 weeks, the step-test was again【C15】______to both groups of subjects, and their pulses taken. The post-exercise pulse rates of subjects in the experimental group【C16】______found to have decreased a(n) 【C17】______of 30 heart beats per minute, with the lowest decrease 28 and th highest decrease 46. The pulse rates of subjects in the control group【C18】______the same or changed no more than 4【C19】______, with a(n) 【C20】______difference between the initial and final tests of zero. [br] 【C4】
选项
A、at
B、by
C、with
D、of
答案
A
解析
表示“以……速度”用介词at。
转载请注明原文地址:https://tihaiku.com/zcyy/3308827.html
相关试题推荐
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
Fiftyvolunteerswerealphabeticallydividedintotwoequalgroups,GroupA
随机试题
TheworkforcehaverecentlybeencallingfortheirworkinghourstobereduceD.M
Itisoftenthroughgooddinnersthatonemakesfriends.InJapan,thereare
Doyoualwaysunderstandthedirectionsonabottleofmedicine?Doyouknow
A.山药B.枸杞C.冬虫夏草D.甘草E.黄连国家对部分重点中药材购销实行管理,属
通过接触感染的是A.猪带绦虫B.蛲虫C.黑热病原虫D.阴道毛滴虫E.血吸虫
不属于学校卫生保健的作用的是A.促进学校教育目标的实现 B.早期发现和处理健康
由风险资本家融资的初创公司比通过其他渠道融资的公司的失败率要低。所以,与诸如企
在俄罗斯国家杜马日前举行的经济工作会议上,一些专家强调,在世界上多数国家陷人危
适用于数值型数据的图示方法有()A.直方图 B.折线图 C.条形图 D.
沟槽式连接件连接可用于消防水、空调冷热水、给水、雨水等系统直径大于或等于( )m
最新回复
(
0
)