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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.

Tile step-test was given ______.

A.after each exercise period

B.at the beginning and at the end of the seven week period

C.only once, at the beginning of the seven week period

D.twice to the men in Group A and once to the men in Group B

提问人:网友liuqlgxk 发布时间:2022-01-06
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更多“Fifty volunteers were alphabet…”相关的问题
第1题
It is impossible to find out exactly how many volunteers are at work today in the United S
tates. Thirty-seven million or so are known to belong to【C1】______like the Pink Ladies, Travelers' Aid, or Big Brothers', but those who work【C2】______or in small informal groups cannot be【C3】______. The total number of men and women who give their time to help others appears to be between fifty and sixty-eight million.

They do almost anything: they sew, clean,【C4】______, paint, cook, repair things,【C5】______books for the blind,【C6】______sick children in hospitals, or【C7】______senior citizens who do not want to go out alone. They give their blood; they work in libraries and schools; they【C8】______documents for new citizens with a language problem or【C9】______money to support local symphony orchestras; they answer the telephone calls of the【C10】______who are thinking of killing themselves, and who need a friendly【C11】______.

Volunteers start community projects too small to attract the attention of organized agencies, or work at jobs【C12】______no funds are available. A(n)【C13】______of city folk will turn an empty【C14】______into a playground for the children of their neighborhood; others decide to repair and paint a few dilapidated houses in their street.【C15】______Women cook and【C16】______two hot meals a day to elderly people【C17】______alone, and too sick or too tired to prepare their own food.【C18】______group calls lonely old people once a day to chat a little and【C19】______if they are all right. Some college students teach English, mathematics, or drawing to the inmates of a local jail. Anywhere one looks, the【C20】______of volunteers is hard at work--not only in the United States, but in many other countries where "volunteerism" is spreading.

【C1】

A.institutions

B.organizations

C.divisions

D.unions

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第2题
It is impossible to find out exactly how many volunteers are at work today in the United S
tates. Thirty-seven million or so are known to belong to organizations like the Pink Ladies, Travelers' Aid, or Big Brothers; but those who work alone or in small informal groups cannot be counted. The total number of men and women who give their time to help others appears to be between fifty and sixty-eight million.

Volunteers start community projects too small to attract the attention of organized agencies, or work at jobs for which no funds are available. A handful of city folk will turn an empty lot into a playground for the children of their neighborhood; others decide to repair and paint a few dilapidated houses in their street. Somewhere else women cook and deliver two hot meals a day to elderly people living alone, and too sick or too tired to prepare their own food. Another group calls lonely old people once a day to chat a little and find out if they are all right. Some college students teach English, mathematics, or drawing to the inmates of a local jail. Young men and women spend part of their weekends collecting empty cans and bottles for the recycling center of their community, and some children pick up the trash left on the beach by the crowd of a summer holiday. Anywhere one looks, the army of volunteers is hard at work—not Only in the United States, but also in many other countries where volunteerism is spreading.

Fifteen years ago, the typical volunteer was a married woman between twenty-five and forty-five, who had children in school and time on her hands. She was rather well educated, with a high-school or a college degree, and she didn't need to earn a salary. She was therefore free to devote her time and talents to those who seemed to need them. Some women volunteered out of boredom, because they needed to find an occupation outside their house. But the great majority were prompted only by the desire to relieve some distress, to be useful. There have always been such women ready to give of themselves unselfishly and quietly. At the beginning of the American Civil War, around 1846, a schoolteacher named Clara Barton undertook to deliver to wounded soldiers all sorts of supplies-food, clothes, tobacco, and even medicine—that they could not get easily. She paid for these out of her own money at first, and later from the funds that she could collect from other generous people. She also ventured on the battlefields, during or after battles, to help the wounded and the dying. After the war, the government asked her to help search for missing soldiers. She helped later in other wars in Europe and attracted a number of women willing to share her work. The group grew and eventually became the American Red Cross, which now counts about 1,140,000 volunteers, with a budget of eighty-two million dollars, all from voluntary contributions.

Another pioneer of the same period, Dorothea Dix, fought to improve the living conditions in the hospitals for the mentally iii, which were not well run at the time. Her efforts finally caused state governments to take financial responsibility for these institutions. Many organizations have been launched by a determined group of volunteers, from the Boy Scouts and Girl Scouts of America to the Sierra Club, devoted to the protection of nature, and to the Gray Panthers, who fight discrimination against the elderly and try to keep them active, happy, and politically important by encouraging them to vote.

According to the passage, all the following statements are true EXCEPT______.

A.the exact number of volunteers in America is difficult to find out

B.there are thirty-seven million volunteers at work in the United States

C.American Red Cross counts about 1,140,000 volunteers with a large budget

D.the total number of volunteers in America ranges from fifty to sixty-eight million

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第3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 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, a 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 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 ration of active riding was increased every few days, so that by the third week it was haft 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 of 28 and the highest decrease of 46. The pulse rates of subjects in the control group (Group B) remained the same or changed no more than 4 beats, with an average difference between the initial and final tests of zero.

How many people were in each group?

A.100.

B.25.

C.50.

D.15.

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第4题
Fifty volunteers were alphabetically divided into two equal groups, Group A to participate
【1】a 7-week exercise program, and Group B to avoid【2】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【3】of stepping up and down on a 16-inch bench【4】30 steps a minute for 5 minutes. One minute after completion of the step-test the pulse【5】of each subject was taken and recorded. This【6】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【7】for riders to ride relaxed during the first day's ride,【8】holding on to the handle bars and foot pedals【9】the machine moved.【10】, 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【11】every few days,【12】by the third week it was half of each minute, and by the seventh week the riders were【13】15 solid minutes of active riding.

【14】end of the 7 weeks, the step-test was again【15】to both groups of subjects, and their pulses taken. The post-exercise pulse rates of subjects in the experimental group【16】found to have decreased a(n)【17】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【18】the same or changed no more than 4【19】, with a(n)【20】difference between the initial and final tests of zero.

(1)

A.at

B.on

C.in

D.with

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第5题
Don’t wer these old clothes. Theyre ____ style.inB.outC.ofD.out ofDon’t wer these old clothes. Theyre ____ style.in B.out C.of D.out of

A.in

B.out

C.of

D.out of

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软件分析的技术支柱有哪些?简述WER是如何工作的
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第7题
与冰雹最相关的是

A.WER

B.TVS

C.TDS

D.距离模糊

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________ ist das? --Das ist ein Computer.

A、Wie

B、Was

C、Wer

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第9题
对模型进行“旋转”“缩放”“移动”操作的快捷键按此顺序排列应是()

A.WER

B. ERW

C. EWR

D. WRE

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第10题
He won’t wer ht _____. however cold it isB.how cold it is C.however it is cold D.however coldHe won’t wer ht _____. however cold it is B.how cold it is C.however it is cold D.however cold is it

A.however cold it is

B.how cold it is

C.however it is col

D.however cold is it

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