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提问人：网友huangqiu 发布时间：2022-01-07
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A research group has carried out such an experimen...

A research group has carried out such an experiment: Portland cement and fly ash Portland cement with the same strength grade are used to prepare two kinds of concrete with the same strength grade. It is found that: (i) The compressive strength development law is shown in the following figure; (ii) the carbonation phenomenon of fly ash Portland cement concrete is significantly lower than that of Portland cement concrete after accelerated carbonization; (iii) After 28 days of curing, when soaked in concentrated sulfate environment, the corrosion resistance time of Portland cement concrete is significantly lower than that of fly ash Portland cement concrete. Please explain the reasons for the above three phenomena (strength, carbonation and corrosion resistance difference) .

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第1题
The research group has submitted a report, （suggest) ______ reforms to be made.

The research group has submitted a report, (suggest) ______ reforms to be made.

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第2题
With the success of experiments on vaccine against some forms of cancer, the research grou
p has been itself up for the furtherance of research in this field.

A．preparing

B．equipping

C．gearing

D．framing

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第3题
The possible research of family trees is based on the fact that______.A．genetics has achie

The possible research of family trees is based on the fact that______.

A．genetics has achieved a breakthrough

B．genetic information contained in DNA can be revealed now

C．each individual carries a unique record of who he is and how he is related to others

D．we can use DNA to prove how distant an individual is to a family, a group or a population

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第4题
The possible research of family trees is based on the fact that ______ .A．genetics has ach

The possible research of family trees is based on the fact that ______ .

A．genetics has achieved a breakthrough

B．genetic information contained in DNA can be revealed now

C．each individual carries a unique record of who ho is and how he is related to others

D．we can use DNA to prove how distant an individual is to a family, a group or a population

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第5题
The possible research of family trees is based on the fact that __________.
查看材料

A.genetics has achieved a breakthrough

B.genetic information contained in DNA can be revealed now

C.each individual carries a unique record of who he is and how he is related to others

D.we can use DNA to prove how distant an individual is to a family， a group or a population

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第6题
3 Fran？ois, Demetris, José and Giuseppe are a group of students from different Mediterrane
an countries, taking their

MBA in a large UK city. As part of their course requirements, the group has to come up with an innovative business

idea, research into the feasibility of that idea and then present their business plan to a panel. After considerable

brainstorming they have come up with the idea of a themed restaurant based around Mediterranean cooking, menus

and service provisionally called ‘Casa del Mediterraneo’ and located in the city centre.

Initial research has revealed suitable premises to rent, but also the severe competition they will face in a city that is

very cosmopolitan and well provided for with restaurants serving cuisine from many parts of the world. The city has

a student population of around 100,000 and this, together with a young working population, means that there is a

very vibrant social life and a real willingness to sample food from different parts of the world.

Required:

(a) Identify and evaluate the critical success factors and associated competences that the group should consider

in developing their business plan for the restaurant. (12 marks)

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第7题
Are two heads usually better than one？ If you had a difficult problem tosolve, would you b

Are two heads usually better than one？ If you had a difficult problem to

solve, would you be better working on the problem alone or working on it as S1.______

part of a group？ Years of research has yielded a consistent pattern of findings

shows that groups typically produce more, and produce better solutions to S2.______

problems than the same number as individuals working alone. For instance, a S3.______

classic experiment by Shaw had groups or individual subjects attempted to S4.______

solve problems involving conceptual and mathematical skill. In every case, S5.______

the groups produced more correct solutions than the individuals.

However, it was one important warning to the finding of group superiority: S6.______

the groups were considerably less efficient, when time considered, than the S7.______

individuals were. In other words, although groups produced more correct solutions,

but they did so at a cost of more time. In fact, much subsequent S8.______

research has suggested that the advantage of groups in solving problems can be

outweighed unless efficiency in terms of time per person is a major criterion. S9.______

As a general rule, though, group performance in problem-solving situations is

more qualitatively and quantitatively superior to the performance of the average S10.______

individual working alone. There are a number of reasons groups are generally

better at problem solving than individuals.

【S1】

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第8题
SECTION CNEWS BROADCASTDirections: In this section, you will hear several news items. List

SECTION C NEWS BROADCAST

Directions: In this section, you will hear several news items. Listen to them carefully and then answer the questions that follow.

听力原文： Cambridge University confirmed that talks are under way with Microsoft on the establishment of a research center, but they were "at a very preliminary stage". Industry sources say that recruitment has started for a research group of up to 100 people. Bill Gates, Microsoft’s founder, refuses to acknowledge the project existence.

What might eventually happen between Microsoft and Cambridge University？

A．To set up a joint research center.

B．To extend their cooperation.

C．To hire some researchers.

D．To complete the project.

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第9题
Online shopping （网上购物) has become a major force in retailing this year with more than

Online shopping (网上购物) has become a major force in retailing this year with more than US $1 billion in Christmas season sales, industry analysts say.

The figure for the holiday tops the total for Internet shopping in all of 1996.

Online shopping for the holiday season remained just a drop in the ocean of the estimated US $ 450 billion spent by US consumers. But the figure is growing rapidly.

International Data Corporation, a market research group, predicts the World Wide Web (万维网) population will reach almost 100 million by 1998 and that online commerce will grow to more than US $ 20 billion.

The passage is mainly about______.

A．Christmas sales.

B．retailing business.

C．Internet population.

D．online shopping.

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第10题
Life is short, so you have to make good ___31 ___of it every day. Has anybody ever told yo
uthat we should value our life？ Maybe they just said“YOLO” to you instead. YOLO stands ___ 32___ “You Only Live Once”, and is a very popular saying on social media.

Having a YOLO lifestyle. means that you make the most of every day. It means you shouldenjoy your life ___ 33___ everybody gets only one life. Someone ___ 34___ has a YOLO lifestyle. isalways open to doing new, fun activities.

Now, thanks to a US study, YOLO might be more than just a popular___ 35___ . A study foundit might be healthier to have a YOLO lifestyle!

A research team did a(n) ___ 36 ___with two groups of students from different US universities. One group pretended they only had 30 days left before moving to a new city. They did lots ofactivities and spent time with people they loved. ___ 37___ other words, they had a YOLO lifestyle. The other group continued living their normal lives.

At the end of the experiment the students did a survey to find out how happy they were. Itshowed that the ___ 38___ group was much happier.

“The study shows that being active and making close friendships are important to ____ 39___life,”the research group told the Washington Post. They ___ 40___ called on others to do experimentswith different groups of people and see if their findings were similar.

31_________

A.use

B.fun

C.trouble

D.care

32A.us

B.for

C.against

D.in

33A.if

B.because

C.until

D.unless

34A.whom

B.what

C.who

D.which

35A.saying

B.letter

C.book

D.treatment

36A.advertisement

B.operation

C.experiment

D.treatment

37A.On

B.From

C.To

D.In

38A.first

B.second

C.third

D.last

39A.losing

B.enjoying

C.saving

D.killing

40A.also

B.instead

C.never

D.though

请帮忙给出每个问题的正确答案和分析，谢谢！

点击查看答案
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