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Sometimes a researcher cannot get valid results because ______.A．the information needed is

Sometimes a researcher cannot get valid results because ______.

A．the information needed is too complex to be gathered

B．personal interviewing is the most accurate of all survey research techniques

C．personal interviewing is not as effective as other research techniques

D．both interviewer and interviewee may make mistakes during the interviewing

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更多“Sometimes a researcher cannot …”相关的问题

第1题

Rationalist （) attaches importance to the logicality of pedagogy research, but neglec

A.Sometimes

B.development

C.organizational

D.pedagogy

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第2题

According to the passage, why were doctors in the West sometimes unable to help their pati

ents？ ()

A．They did not know how to treat the unfamiliar illnesses.

B．They were more interested in establishing practices in the cities.

C．They were more concerned with doing research than with treating patients.

D．They were often overcome by diseases caught from their patients.

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第3题

Many teachers believe that the responsibilities for learning lie with the student.【51】a lo

ng reading assignment is given, instructors expect students to be familiar with the【52】in the reading even if they do not discuss it in class or take an examination. The【53】student is considered to be【54】who is motivated to learn for the sake of【55】, not the one interested only in getting high grades. Sometimes homework is returned【56】brief written comments but without a grade. Even if a grade is not given, the student is【57】for learning the material assigned. When research is【58】, the professor expects the student to take it actively and to complete it with【59】guidance. It is the【60】responsibility to find books, magazines, and articles in the library. Professors do not have the time to explain【61】a university library works; they expect students, 【62】graduate students, to be able to exhaust the reference【63】in the library. Professors will help students who need it, but【64】that their students not be【65】dependent on them. In the United States, professors have many other duties【66】teaching, such as administrative or research work.【67】the time that a professor can spend with a student outside class is【68】If a student has problems with classroom work, the student should either【69】a professor during office hours【70】make an appointment.

(51)

A．If

B．Although

C．Because

D．Though

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第4题

Personal interviewing is most efective when all th...

Personal interviewing is most efective when all the people to be interviewed are located in a relatively small geographical area, Otherwise. the time and expense spent in travelling from one person to anotber makes this type of interviewing economically impractical.Personal intervicwing is usunlly used when the information needed is too complex to be gathered by anotber technique. For example. a problem being studied may require the interviewer to probe beyond the more superficial (表面的) answers that might be obtained with another method, It is sometimes assumed that personal interviewing is the most accurate of all survey research techniques.Although personal interviewing may be accurate in many eases. human errors may prevent a researcher from obtaining valid results. Questions perceived by the interviewce(应试者)as an invasion of privacy ot threatening in any way will probably produce false or partially true answers. Also, since the interviewer must interpret the respondent&39;s statements. a certain amount of information loss results even though the respondent may be answering truthfully. In spite of the problems. At least two major advantages are provided by research technique. First, the alert interviewer can generally tell if the respondent is being truthful or if he or she is giving superficial or untrue responses. Second, the interviewer can rephrase questions, give more explanation, or probe more deeply if the initial questions do not produce the information desired. As a result, the information gleaned should be more accurate than that provided by interviews where no one is present to clarify questions or to interpret answers.

It can be concluded from the passage that when all the people to be interviewed are located in a relatively big geographical area____.

A.personal interviewing is most effective

B.personal interviewing is economically impractical

C.personal interviewing is the only technique to get information

D.telephone interviewing may not be used

Sometimes a researcher cannot get valid results because____.A.the information needed is too complex to be gathered

B.personal interviewing is the most accurate of all survey research techniques

C.personal interviewing is not as ffective as other research techniques

D.both interviewer and interviewee may make mistakes during the interviewing

In the second paragraph, the phrase“an invasion of privacy" most probably meansA.an unpleasant conversation

B.a challenge to interviewee’s professional skills

C.an interference with interviewee’s personal affairs

D.an interference with interviewee’s hobby

According to the last paragraph, one of the advantages of the personal interviewingA.the interviewer can ask the interviewee questions again in different ways

B.the interviewer can ask the interviewee some personal questions

C.the initial question do not produce the information desired

D.no one is present to clarify questions

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第5题

阅读下面的文章，根据文章内容判断文章后的句子是正确（T）还是错误（F）。There are eight traditional functions of marketing:

Buying:A marketer focuses on buyers'needs and desires in order to decide what products to make available.Understanding buyers'behavior is of great importance.

Selling:Marketers usually view selling as a persuasive activity that is completed through promotion.Selling includes personal selling, advertising, and other selling methods.It is probably the function of marketing that we most often see in our daily life.

Transporting:Transporting is physically moving the product from the seller to the buyer.Marketers focus on transporting costs and services.

Storing:Like transporting, storing is an aspect of the physical distribution of products.Storing includes warehousing activities.Warehouses hold products for long periods sometimes in order to create time utility.

Grading:Grading involves sorting products according to size and quality.This makes buying and selling easier because it reduces the need for inspection and sampling.

Financing:For many products, such as automobiles, fridges and new homes, the purchase is facilitated when the marketer provides credit that makes the purchasing of the product possible.

Marketing research:Through research, marketers may find out the need for new products and services.By gathering information on a regular basis, they can better plan, carry out and control marketing activities.

Risk taking:It involves bearing the uncertainties that are part of the marketing process.Most marketing decisions result in either success or failure that is associated with risk.

1.It is very important to understand buyers'behavior.

2.Marketers usually use different selling methods.

3.Marketers ignore transporting costs and services.

4.Both transporting and storing are the aspects of the physical distribution of products.

5.Marketers provide credit that makes the purchasing of automobiles, fridges and new homes possible.

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第6题

听力原文： [26] At the heart of the dispute is whether food aid to developing countries sho

uld be in the form. of cash or agricultural products, often subsidized by donors. [27] The European Union argues that cash donations are the best way to quickly purchase food in an emergency because food shipments are sometimes sold in local markets at the receiving end. And European countries say flooding markets with cheap imported food drives local farmers out of business. Edward Clay, Senior Research Associate at the Overseas Development Institute in London says the European approach makes food aid more flexible. [28] The United States argues that the European cash-only approach has been ineffective, causing a steep decline in food aid since the 1990s. According to a report published by the World Food Program, food aid contributions suffered a ＄1 billion shortfall last year. In contrast, the U.S. sends donations to developing countries in the form. of com, wheat and other commodities.

The dispute between the European Union and the United States is mainly about

A．whether there is a steep decline in food aid since the 1990s.

B．whether food aid drives local farmers out of the market.

C．whether food aid displaces local products in developing countries.

D．whether food aid should be in the form. of cash or agricultural products.

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第7题

Personal interviewing is most effective when all the people to be interviewed are located

in a relatively small geographical area. Otherwise, the time and expense spent in travelling from one person to another makes this type of interviewing economically impractical. Personal interviewing is usually used when the information needed is too complex to be gathered by another technique. For example, a problem being studied may require the interviewer to probe beyond the more superficial answers that might be obtained with another method.

It is sometimes assumed that personal interviewing is the most accurate of all survey research techniques. Although personal interviewing may be accurate in many cases, human errors may prevent a researcher from obtaining valid results. Questions perceived by the interviewee as an invasion of privacy or threatening in any way will probably produce false or partially true answers. Also, since the interviewer must interpret the respondent's statements, a certain amount of information lose results even though the respondent may be answering truthfully.

In spite of the problems, at least two major advantages are provided by this research technique. First, the alert interviewer can generally tell if the respondent is being truthful or if he or she is giving superficial or untrue responses. Second, the interviewer can rephrase questions, give more explanation, or probe more deeply if the initial questions do not produce the information desired. As a result, the information gleaned should be more accurate than that provided by interviews where no one is present to clarify questions or to interpret answers.

It can be concluded from the passage that when all the people to be interviewed are located in a relatively big geographical area______.

A．personal interviewing is most effective

B．personal interviewing is economically impractical

C．personal interviewing is the only technique to get information

D．telephone interviewing may not be used

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第8题

Life really should be one long journey of joy for children who are bora with a world of w

ealth at their tiny feet.But experts on psychological research now believe that silver spoons can leave a bitter taste. If suicide statistics are a sign of happiness, then the rich are a miserable lot. Figures show that it is the rich who most often do away with themselves.

Dr. Robert Coles, an internationally famous doctor, is the world&39;s top expert on the influence of money on children. He haswriTitten awell-received book on the subject, The Privileged Ones, and his research shows that too much money in the family can cause as many problems as too little. Obviously there are certain advantagesto being rich，," says the 53-year-old doctor, such as better health, education and future work expectation. But most important is the quality of family-life. Money can&39;t buy love."

It can buy a lot of other things, though, and that&39;s where the trouble starts. Rich kids have so much to choose from that they often become confused. Their parents&39;over favoring can make them spoiled. They tend to travel more than other children, from home to home and country to country, which often makesthem feel restless. "

But privileged children do have a better senseof their positions in the world ； ." adds Mr. Coles, "and they are more self-assured."

Today&39;s rich parents perhaps have realized that their riches can be more of a burden than a favor to their children. So their priority is to ensure that their families are as rich in love as they are in money.

According to the passage,children of rich families ______.

A.enjoy traveling

B.can buy love

C.usually commit suicide

D.are not always happy

Dr. Robert Coles believes that______ .A.being rich hasas many advantagesas being poor

B.rich children often get too little entertainment

C.rich children sometimes can't enjoy the thing they aremost in needof

D.rich children aren'tgiven enough things

Which of the following statementsis NOT TRUE according to the passage？A.It is love that is always lacking in rich and poor families alike.

B.Silver spoonscan sometimes leave abitter taste.

C.Money can't buy everything.

D.Rich children are often confused becausethey have so much to choosefrom.

The expression “silver spoons” in Paragraph1 means_____ .A.very expensive spoons

B.rich people

C.wealth

D.spoonsmade of silver

This article is written mainly to tell readersthat .A.the rich are more likely to do away with themselves

B.money can bring alot of things, including love

C.life is always happy for children of rich parents

D.rich parentsshould realize what is important in the family is love rather than money

请帮忙给出每个问题的正确答案和分析，谢谢！

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第9题

Recently, a study has confirmed what I’ve long known in my heart: two breakfasts are bette

rthan none. The research on the effect of breakfast on weight gain was done on school children. But for adults, in theory, two breakfasts are also better than none.

Researchers from Yale and the University of Connecticut followed 600 middle-schoolstudents as they developed from fifth to seventh grade, nothing their weight and if they had zerobreakfast, breakfast either at home or at school, or breakfast in both places. They found thatweight gain among second-breakfast eaters was no different from the average gain seen amongall students. Children who didn ’t eat breakfast, or ate it only sometimes, were more likely to beoverweight than double-breakfasters. It should be noted that only about one in ten children inthe study ate two breakfasts.

The study wasn’t designed to figure out why this might be true, but the researchers havesome theories: that people who don ’t eat breakfast (or any meal) might overeat later in the day,and that as people become obese, they tend to reduce calories （热量） by having no breakfast.

Yes, school breakfasts are more like a healthy snack（零食） than a full meal, and growingteens can eat a large amount of food. But if you ’re still not eating breakfast because you think itgives you more colories, you are not only mistaken, but you are also missing out one of life ’s greatpleasures.

What do we know about the research according to Paragraph 1？

A.It was about the effect of dinner on weight gain.

B.Its result was opposite to the author’s opinion.

C.It was done on overweight school children.

D.Its result might also be true of adults.

Which of the following is true according to Paragraph 2？A.About 90% of the children in the study had two breakfasts a day.

B.About 90% of the children in the study had one breakfast a day.

C.About 10% of the children in the study had two breakfasts a day.

D.About 10% of the children in the study had no breakfast at all.

What does the underlined word obese mean in Paragraph 3？A.Overweight.

B.Strong.

C.Tall.