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It is the business of the scientist to accumulate knowledge about the universe and all

that is in it, and to find, if he is able, common factors which explain the facts that he knows. He chooses, when he can, the method of the "controlled experiment". If he wants to find out the effect of light on growing plants, he takes many plants, as alike as possible. Some he stands in the sun, some in the shade, some in the dark; all the time keeping all other conditions (temperature, moisture, nourishment) the same. In this way, by keeping other conditions constant, and by varying the light only, the effect of light on the plants can be clearly seen. This method can be applied to a variety of situations.In the course of his inquiries the scientist may find what he thinks is one common explanation for an increasing number of facts. The explanation, if it seems consistently to fit various facts, is called a hypothesis. If a hypothesis continues to stand the test of numerous experiments and remains unshaken, it becomes a law.

1.In order to investigate the effect of light on growing plants the scientist____.

A、has to stand in the sun

B、can keep the same plants under different conditions of light

C、takes as many plants as possible

D、both b and c

2.The word "constant" in the first paragraph means____.

A、continual

B、faithful

C、various

D、unchanging

3.What should be kept the same in a "controlled experiment"? ____

A、All the factors.

B、The common factors.

C、The factor under investigation.

D、All factors except the one being investigated.

4.According to the passage, a hypothesis is____.

A、an explanation for a large number of facts likely to be accepted as a truth

B、a factor which explains the facts already known to the scientist

C、an explanation that stands the test of numerous experiments

D、a common explanation that will definitely become a law

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更多“It is the business of the scientist to accumulate knowledge about the universe and all”相关的问题

第1题

Toward the new business wave, the writer\'s attitude can be said to be _______ .A o

Toward the new business wave, the writer\'s attitude can be said to be _______ .

A optimistic

B objective

C pessimistic

D biased

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第2题

Risk Event Status is defined as _____ .ARisk Probability x Amount At Stake.Bthe severity o

Risk Event Status is defined as _____ .

A Risk Probability x Amount At Stake.

B the severity of the consequences.

C how likely the event is to occur with risk.

D (Cost + Benefit + Business Risk) / Insurable Risk.

E B and C

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第3题

166Risk can be divided into two basic types; business risk and pure (or insurable risk). O

166 Risk can be divided into two basic types; business risk and pure (or insurable risk). Of the following, which one(s) fall(s) under business risk?

A. liability loss

B. direct property loss

C. profit loss

D. personnel-related loss

E. B and C

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第4题

按照理论出现的顺序,从1960年代到1990年代战略管理理论的发展主要包括的学派有:资源为基础的学派,计划学派,产业/组织学派,资源/能力为基础的学派。 The main schools of business strategy from 1960s to 1990s includes: Resourse Based Approach; Planning Approach; I/O view; Resource/Competence Based approach.
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第5题

按照理论出现的顺序,从1960年代到1990年代战略管理理论的发展主要包括的学派有:资源为基础的学派,计划学派,产业/组织学派,资源/能力为基础的学派。 The main schools of business strategy from 1960s to 1990s includes: Resourse Based Approach; Planning Approach; I/O view; Resource/Competence Based approach.
点击查看答案

第6题

put computers to practical business use, but below the surface it is the heart of an(2

put computers to practical business use, but below the surface it is the heart of an(22) - the kernel - that provides the technical wizardry to juggle multiple programs, connect to networks and store(23).A traditional kernel provides all the functions for applications. The kernel(24) memory, I/O devices and parcels out processor time.The kernel also supports(25) and fault tolerance, which is the ability to recover automatically when parts of the system fail.

A.Databases

B.Applications

C.Drivers

D.Games

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第7题

Applications put computers to pratical business (1), but below the (2) it's the heart of a

Applications put computers to pratical business (1), but below the (2) it's the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store (3) . A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time.

The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail.

A.used

B.use

C.apply

D.applied

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第8题

英译汉In 1995 James and Anne-Marie O'Connor decided to open a small shop selling san

英译汉

In 1995 James and Anne-Marie O'Connor decided to open a small shop selling sandwiches in the city center about 4 1/2 miles from their home. They couldn't afford a bigger shop with a kitchen at the back as that would have cost an extra $250 per month and they didn't have enough money. They planned to prepare the food at home and drive it to the shop, a 20-minute journey.

They opened the shop in May and were soon doing very good business selling food to the people who worked in offices in the city. Everything went well for the first 6 months, but then, as the weather got colder, fewer people came into their shop. Takings were down by 15% and they both knew they would go out of business if things didn't improve.

They decided to start selling hot food Anne-Marie prepared it at home and drove it to James at the shop. Everything was going fine until one day Anne-Marie got caught in a traffic.

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第9题

About electronic wallet, the correct descoiption is (72).A.electronic wallets require con

About electronic wallet, the correct descoiption is (72).

A.electronic wallets require consumers to enter their information at every site with which they want to do business

B.a client-side electronic wallet stores a customer's information on a remote server belonging to a particular merchant or wallet publisher

C.a server-side electronic wallet s ores consumers' information on their computer

D.when consumers select items o purchase, they can then click their electronic wallet to order the items quick,

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第10题

Michael calls Mr. Xie’s company to postpone their appointment. His secretary Rosem

ary answers the phone.

Michael: Good morning. Can I talk to Mr. Xie, please?

Rosemary: Sorry. He is in a()now. Is there anything I can do for you?

Michael: Well, My name is Michael. I have an appointment with Mr. Xie at about 10 o’clock tomorrow morning, but could you please()it to sometime next week?

Rosemary: All right. What should I tell Mr.Xie?

Michael: I have to go for an urgent business()tomorrow. But I will be back before the weekend. Can we make an appointment for next week?

Rosemary: Well, let me check. Mr. Xie is in next Tuesday and Wednesday. When does it()you?

Michael: Tuesday is good.

Rosemary: I can put you down for eleven o’clock. 9 Is that OK?

Michael: Oh, I’ll have an()that time. How about 3 o’clock in the afternoon?

Rosemary: All right.

Michael: Thanks. Please tell Mr. Xie that I am sorry for the inconvenience. Thank you very much.

Rosemary: You are welcome.

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