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[多选题]

Some important properties of metals include（)

A.high density

B.fracture toughness

C.plastic deformation

D.high strength

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发布时间：2022-05-31

更多“Some important properties of metals include()”相关的问题

第1题

The agent was going to ______.A．give Lane some important papersB．tell him some pieces of a

The agent was going to ______.

A．give Lane some important papers

B．tell him some pieces of advice

C．tell him some important news

D．tell him his suffering

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第2题

In his report of the accident he（) some important details.

A.missed

B.wasted

C.escaped

D.failed

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第3题

The word "scan" in the second paragraph probably means______. A. reading carefully

The word "scan" in the second paragraph probably means______.

A. reading carefully

B. reading quickly and not word by word

C. reading by repeating some important words

D. reading more than one article at the same time

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第4题

What will the next decade bring, as we move into a new millennium？ That’s getting hard

er and harder to predict. Change is coming so fast that some of the most important technologies of the 21st century may now be just a sketch on the drawing board or glimmer in the mind of genius. Then again, the transcendent technologies may be right under our noses on the verge of having as great an impact as the car or telephone.

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第5题

根据以下内容，回答下列各题。 Man’s first real invention, and one of the most important inve

ntions in history, was the wheel．All transportation and every machine in the world depend on it．The wheel is the simplest yet perhaps the most remarkable of all inventions, because there are no wheels in nature-no living thing was ever created with wheels．How, then, did man come to invent the wheel？ Perhaps some early hunters found that they could roll the carcass of a heavy animal through the forest on logs more easily than they could carry it．However, the logs themselves weighed a lot． It must have taken a great prehistoric thinker to imagine two thin slices of log connected, at their centers by a string stick．This would roll along just as the logs did, yet be much lighter and easier to handle．Thus the wheel and axle came into being and with them the first carts． The wheel is important because _______．

A.it was man’s first real invention

B.all transportation depends on it

C.every machine depends on it

D.both B and C

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第6题

For some employers, the policy of lifelong employment is particularly important because it

means that they can put money and effort into their staff(职员)training and make them loyal to the company. What they do is to select young people who have potential(潜能)and who can be trained, They then give the young people the kinds of skills that will make them suitable employees for the company. In other words, they adjust their training to their particular needs.

One recently employed graduate says that she is receiving a great deal of valuable training from the company. "This means that I will be a loyal employee，"she says, "And it also means that the company will want to keep me. I am an important investment for them. So the policy is a good one because it benefits both the employer and the employee. "

Recently, however, attitudes towards lifelong employment are beginning to change. Employees are slowly beginning to accept the idea that lifelong employment is not always in their best interest and that changing firms can have career advantages.

The purpose of lifelong employment is to______

A．adjust the needs of the company to its employees

B．make employees loyal to their company

C．select the best skilled young employees

D．keep the skilled staff satisfied

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第7题

Most American families are smaller than the families in other countries. Most American

families have one or two parents and one or two children each. Children in the US will leave their parents ’ home when they grow up. They usually live far from their parents because they want to find good jobs. They often write to their parents or telephone them. And they often go to visit their parents on holiday. Parents usually let their children choose their own jobs. Americans think it important for young people to decide on their lives by themselves. Children are asked to do some work around their house. And in many families, children are paid for doing some housework so that they learn how to make money for their own use.

1.The size of most American families is() that of other countries.

A、larger than

B、smaller than

C、as big as

D、as small as

2.When children grow up, they leave their parents’ home to()

A、get married

B、be free

C、find good jobs

D、study

3.They visit their parents()

A、on weekdays

B、on weekends

C、at any time

D、on holiday

4.Which of the following statements is WRONG()

A、Children have the freedom to choose their own job

B、Parents don't ask their children to do the housework.

C、Parents think it important for children to make their own decision.

D、When children grow up, they usually live far away from their home.

5.Some parents pay their children for doing housework because ()

A、children can learn how to make money for themselves

B、their children required them to do so

C、they are rich

D、it is required by law

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第8题

Yet some important observers of business see things differently. Widely read gurus su

ch as Stephen Covey and Tom Peters point to the practical utility of moral virtues such as compassion, responsibility, fairness, and honesty. They suggest that virtue is an essential ingredient in the recipe for success, and that moral standards are not merely commendable choices but necessary components of a thriving business career. This is a frequent theme in commencement addresses and other personal testimonials: Virtuous behavior. advances a career in the long run by building trust and reputation, whereas ethical shortcomings eventually derail careers. The humorist Dorothy Parker captured this idea in one of her signature quips: "Time wounds all heels."

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第9题

Milk was one of the main foods for people long before history was written.Maybe【21】will re

Milk was one of the main foods for people long before history was written. Maybe【21】will remain an important food as long as there are【22】that give milk. The old word "milk"【23】Sanskrit(梵文), one of the oldest【24】known to man. A very old picture of milking,【25】was drawn five thousand years ago, has been found.

In the years long ago, people got their milk【26】their own animals. But【27】modern times new inventions made the milk industry(产业) a big business.【28】1851 Gall Borden found a way to【29】some of the water out from milk. This made milk keep longer. Four years later, Louis Pasteur【30】 a way to kill the bacteria(细菌) in milk. Then a special milk bottle was made. This was followed【31】 the invention of machines that could fill bottles with milk. The discoveries had a great effect(影响) on the milk industry. They meant that milk could be kept longer.

Some people believe that milk drinking will become less popular【32】 it has been. But remember how long milk has been an important food【33】 think of the many ways【34】 it is useful. It seems【35】 to say that the milk industry will always be important.

(36)

A．it

B．they

C．he

D．she

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第10题

As people continue to grow and age, our body systems continue to change. At a certain poin

t in your life your body systems will begin to weaken. Your joints may become stiff. It may become more difficult for you to see and hear. The slow change of aging causes our bodies to lose some of their ability to bounce back from disease and injury. In order to live longer, we have always tried to slow or stop this process that leads us toward the end of our lives. Many factors contribute to your health. A well-balanced diet plays an important role, The amount and type of exercise you get is another factor. Your living environment and the amount of stress you are under is yet another. But scientists studying senescence (衰老) want to know: Why do people grow old？ They hope that by examining the aging process on a cellular level medical science may be able to extend the length of life.When people become aging, they will lose some of their ability to bounce back from disease and injury, "bounce back" here meansA.to improve in health after one's disease and injuryB.to recover from disease and injuryC.to jump after recoveringD.to run fast

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第11题

根据材料回答下列各题,Smoking, which may be a pleasure for some people, is a serious source

of discomfort for their fellows. _51_, medical authorities express their concern about the effect of smoking _52_ the health not only of those who smoke but also of those who do not. In fact, non-smokers who must involuntarily inhale (吸入) the air _53_ by tobacco smoke may suffer more than the smokers _54_. Smoking is prohibited in the theatres and in halls used for showing films _55_ in laboratories _56_ there may be a fire hazard (危险). Elsewhere, it is up to your good _57_. I am _58_ asking you to maintain “No-Smoking” in classrooms and seminar rooms. This will prove that you have the _59_ health in mind, which is very important to a large _60_ of our students.

A.Still

B.Further

C.More

D.Again

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