One group of Puritans, called the “Pilgrims,” crossed the Atlantic in the ship ().
A.Queen Mary
B.Queen Victoria
C.Mayflower
D.King George
A.Queen Mary
B.Queen Victoria
C.Mayflower
D.King George
experimenting on mice. They are studying the relationship between diet and health. At this time, over one hundred experiments are being done in this laboratory.
In one of these experiments, the scientists are studying the relationship between the amount of food the mice eat and their health. The mice are in three groups. All three groups are receiving the same healthy diet. But the amount of food that each group is receiving is different. The first group is eating one cup of food each day, the second group is eating two cups, and the third group of mice is eating three cups.
After three years, the healthiest group is the one that is only eating one cup of food each day. The mice in this group are thinner than normal mice. But they are more active. Most of the day, they are running, playing with one another, and using the equipment in their cages. Also, they are living longer. Mice usually live for two years. Most of the mice in this group are still alive after three years.
The second group of mice is normal weight. They are healthy, too. They are active, but not as active as the thinner mice. But they are only living about two years, not the three years or more of the thinner mice.
The last group of mice is receiving more food than the other two groups. Most of the day, these mice are eating or sleeping. They are not very active. These mice are living longer than the scientists thought - about a year and a half. But they aren't as healthy. They're sick more often than the other two groups.
(1)、The scientists in the laboratory are studying the relationship between the amount of food and diet.
A:T
B:F
(2)、The first two groups are receiving the most food.
A:T
B:F
(3)、The first group is the thinnest because they do not have a healthy diet.
A:T
B:F
(4)、Normal mice usually live for two years.
A:T
B:F
(5)、The text tells us that people who eat less and exercise more will live longer.
A:T
B:F
(c) The Shirtmaster division and Corporate Clothing division, though being part of the same group, operate largely
independently of one another.
Assess the costs and benefits of the two divisions continuing to operate independently of one another.
(15 marks)
A.Purchasing organization
B.Plant
C.Material group
D.Document type
Holding a group of assets reduces risk as long as the assets ______.
A.are perfectly correlated
B.are completely independent
C.do not have precisely the same pattern of returns
D.have a correlation coefficient greater than one
Although groups often may increase the motivation of their members to deal with problems, there is a counterbalancing need to contend with conflicts arising among members of a group-and to give it coherent directions. Problem solving is facilitated by the presence of an effective leader who not only provides direction but permits the orderly, constructive expression of a variety of opinions; much of the leader's effort may be devoted to resolving differences. Success in problem solving also depends on the distribution of ability within a group. Solutions simply may reflect the presence of an outstanding individual who might perform. even better by himself.
Although groups may reach a greater number of correct solutions, or may require less time to discover an answer, their net man-hour efficiency is typically lower than that achieved by skilled individuals working alone.
A process called brainstorming has been offered as a method of facilitating the production of new solutions to problems. In brainstorming, a problem is presented to a group of people who then proceed to offer whatever they can think of, regardless of quality and with as few inhibitions as possible. Theoretically these unrestricted suggestions increase the probability that at least some superior solutions will emerge. Nevertheless, studies show that when individuals work alone under similar conditions, performance tends to proceed more efficiently than it does in groups.
Under special circumstances, however, a group may solve problems more effectively than does a reason ably competent individual. Group members may contribute different (and essential) resources to a solution that no individual can readily achieve alone; such pooling of information and skills can make group achievements superior in dealing with selected problems. Sometimes social demands may require group agreement on a single alternative, as in formulating national economic or military policies under democratic governments. When only one among several alternative solutions is correct, even if a group requires more time, it has a higher probability of identifying the right one than does an individual alone.
In this passage, the author argues that thinking in groups ______.
A.is the best way to solve any problem
B.is by no means useful in problem-solving
C.may result in effective problem-solving under certain circumstances
D.will inevitably produce greater efficiency in problem solving than individual thinking
A.personwholikesattention
B.personwithstrictmorals
C.personwithamovinghome
D.personwhohatesspendingmoney
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.
The group of boys had to stop because ______.
A.they had reached the peak
B.one of the boys was badly injured
C.one of the boys was sick
D.they had to return to the hut
【B1】
1).The 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
2).The post-exercise pulse rates of Group B were found on the average to have ()
A、not changed
B、gone down 28 beats per minute
C、gone down 30 beats per minute?
D、gone down 4 beats per minute
3).How many people were in each group? ()
A、100
B、50
C、25
D、15
4).What did Group A in their program? They ()every day.
A、stepped up and down on a bench
B、pushed and pulled on exercise handles
C、rode on an Exercycle
D、refrained from any exercise
5).When was pulse taken? ()
A、After every exercise period
B、Every day
C、Every time the ratio of active riding was increased
D、After the step-test