Restating the key ideas is simply repeating key words.（）

A simply supported beam is subjected to a linearly varying distributed loadwith maximum intensityat B. The beam has a length L = 4 m and rectangular cross section with a width of 200 mm and height of 300 mm. Determine the maximum permissible value for the maximum intensity,, if the allowable normal stresses in tension and compression are 120 MPa.

A、the characteristics of target audience

B、the characteristics of the media

C、the media mix

D、the characteristics of the employees

Rewrite the following sentences, emphasizing the main idea in each sentence. 1. Huang, who is over two meters tall, is the tallest man of the team. 2. Social position, reputation, even life itself, and friends, were no longer interesting to him after he went bankrupt. 3. He decided to take the job, and it was something unexpected. 4. China will not be the first to use nuclear weapons under any circumstances. 5. Yang alone can do the work, and there are twenty students in the class. 6. China has changed a great deal as a result of reform and opening-up policy during the past 30 years. 7. She was the first Chinese woman who had won a gold medal for figure skating in an international contest, according to newspaper reports. 8. An attempt was made by Robert to do all the things that the sailor members of the crew usually did while serving as a cabin boy on the ship.

A researcher is interested in testing to determine if the mean of population one is greater than the mean of population two. The null hypothesis is that there is no difference in the population means (i.e. the difference is zero). The alternative hypothesis is that there is a difference (i.e. the difference is not equal to zero). He randomly selects a sample of 9 items from population one resulting in a mean of 14.3 and a standard deviation of 3.4. He randomly selects a sample of 14 items from population two resulting in a mean of 11.8 and a standard deviation 2.9. He is using an alpha value of .10 to conduct this test. Assuming that the populations are normally distributed, the degrees of freedom for this problem are _______.

A、23

B、22

C、21

D、2

Since the 1980s, experts have been claiming that the skill demands of today’s jobs have outstripped the skills workers possess. Moss and Tilly counter that worker deficiencies lie less in job-specific skills than in such attributes as motivation, interpersonal skills, and appropriate work demeanor. However, Handel suggests that these perceived deficiencies are merely an age effect, arguing that workers pass through a phase of early adulthood characterized by weak attachment to their jobs. As they mature, workers grow out of casual work attitudes and adjust to the workplace norms of jobs that they are more interested in retaining. Significantly, complaints regarding younger workers have persisted for over two decades, but similar complaints regarding older workers have not grown as the earlier cohorts aged. The last sentence serves primarily to

A、suggest that worker deficiencies are likely to become more pronounced in the future

B、introduce facts that Handel may have failed to take into account

C、cite evidence supporting Handel’s argument about workers

D、show that the worker deficiencies cited by Handel are more than an age effect

E、distinguish certain skills more commonly possessed by young workers from skills more commonly found among mature workers

1. Judas betrays Jesus When Jesus finished speaking all these words, he said to his disciples, “You know that the Passover is two days from now. And the Human One will be handed over to be crucified.” Then the chief priests and elders of the people gathered in the courtyard of Caiaphas the high priest. They were plotting to arrest Jesus by cunning tricks and to kill him. But they agreed that it shouldn’t happen during the feast so there wouldn’t be an uproar among the people. When Jesus was at Bethany visiting the house of Simon, who had a skin disease, a woman came to him with a vase made of alabaster containing very expensive perfume. She poured it on Jesus’ head while he was sitting at dinner. Now when the disciples saw it they were angry. But Jesus knew what they were thinking. He said, “Why do you make trouble for the woman? She’s done a good thing for me. You always have the poor with you, but you won’t always have me. By pouring this perfume over my body she’s prepared me to be buried. I tell you the truth that wherever in the whole world this good news is announced, what she’s done will also be told in memory of her.” Then one of the Twelve, who was called Judas Iscariot, went to the chief priests and said, “What will you give me if I turn Jesus over to you?” They paid him thirty pieces of silver. From that time on he was looking for an opportunity to turn him in. 1.What can be inferred from the passage?

A、Judas was innocent and grateful.

B、The chief priests respected Jesus in a sincere way.

C、Jesus was assassinated in Passover.

D、The chief priests were plotting to arrest Jesus by cunning tricks and to kill him.

Where do good ideas come from? For centuries, all credit for these mysterious gifts went to faith, fortune and some fair muses. But to assume creativity is some lofty trait enjoyed by the few is both foolish and unproductive, argues Jonah Lehrer in his book Imagine: How Creativity Works. Drawing from a wide array of scientific and sociological research—and everything from the poetry of W.H. Auden to the films of Pixar—he makes a convincing case that innovation cannot only be studied and measured, but also nurtured and encouraged. 3M Company is ranked as the third-most innovative in the world, selling more than 55,000 products, from streetlights to computer touch-screens. But when Mr. Lehrer visits, he finds employees engaged in all sorts of frivolous activities, such as playing pinball and wandering about the campus. These workers are actually pushed to take regular breaks, because interrupting work with a relaxing activity lets the mind turn inward, where it can subconsciously puzzle over subtle meanings and connections (the brain is incredibly busy when daydreaming). But this is just one reason for 3M's creative output. The company also encourages its employees to take risks, not only by spending masses on research （nearly 8% of gross revenue）, but also by expecting workers to spend around 15% of their time pursuing speculative ideas. Most of these efforts will fail, but some, such as masking tape, an early 3M concept, will generate real profit for the company. The reason why this approach works is because many breakthroughs come when people venture beyond their area of expertise. Often it takes an outsider to ask the kind of dumb questions that may yield an unconventional solution. This is why young people tend to be the most innovative thinkers in nearly any field, from physics to music. The ignorance of youth “comes with creative advantages,” writes Mr. Lehrer, as the young are less jaded by custom and experience. Still, he reassures readers that anyone can stay creative as long as he works “to maintain the perspective of the outsider” by considering new problems at work (3M regularly rotates its engineers from division to division), travelling to new countries or simply spending more time staring “at things we don't fully understand”. Mr. Lehrer concludes with a call for better policy to “increase our collective creativity”. He also warns that the it demands a lot of time, sweat and grit. Or as Albert Einstein put it: “Creativity is the residue of time wasted.” 8. Why do young people tend to be the most innovative thinkers in nearly any field?

A、The ignorance of young people may yield an unconventional idea.

B、Young people always ask some dumb questions.

C、Young people are more jaded by custom and experience.

D、The ignorance of young people cannot come with creation.