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21 The causes of sleep problems in older people remain unidentified.
A Right B Wrong C Not mentioned
答案
更多“21 The causes of sleep problems in older people remain unidentified.A Right B Wrong C Not”相关的问题
第1题
1 ) the distribution of killers in different decades and the general trend in these decades
2 ) the possible reasons for the distribution of these killers in the city
Killers in Every 100 Deaths
Period Cancer Heart disease Traffic Accidents Other Causes 1970s 2l 16 7 38 1980s 28 26 15 31 1990s 27 27 21 25
第2题
Most theories of juvenile delinquency have focused on children from disadvantaged families,
【26】______ the fact that children from wealthy homes also commit crimes. The latter may commit crimes 【27】______ lack of adequate parental control. All theories, however, are tentative and are 【28】______ to criticism.
Changes in the social structure may indirectly 【29】______ juvenile crime rates. For example, changes in the economy that 【30】______ to fewer job opportunities for youth and rising unemployment 【31】______ make gainful employment increasingly difficult to obtain. The resulting discontent may in 【32】______ lead more youths into criminal behavior.
Families have also 【33】______ changes these years. More families consist of one parent households or two working parents; 【34】______ , children are likely to have less supervision at home 【35】______ was common in the traditional family 【36】______ . This lack of parental supervision is thought to be an influence on juvenile crime rates. Other 【37】______ causes of offensive acts include frustration or failure in school, the increased 【38】______ of drugs and alcohol, and the growing 【39】______ of child abuse and child neglect. All these conditions tend to increase the probability of a child committing a 'criminal act, 【40】______ a direct causal relationship has not yet been established.
【21】
A．acting
B．relying
C．centering
D．cementing
第3题
We often hear the 【21】______ "Bug" while using computers. But what is a bug？ In computer science, a bug 【22】______ an error in software or hardware. In software, a bug is an error in coding or logic that causes a program to malfunction or to 【23】______ incorrect results. Minor bugs, for example a cursor that does not behave as 【24】______ can be inconvenient or frustrating, but not damaging to 【25】______ . More severe bugs can cause a program to "hang" (stop responding to 【26】______ and might 【27】______ the user with no 【28】______ but to restart file program. ), losing whatever 【29】______ work had not been saved. In 【30】______ case, the programmer must find and correct the error by the 【31】______ known as debugging. Because of the 【32】______ risk to important data, commercial application programs are tested and 【33】______ as completely as possible before release. Minor bugs found after the program becomes 【34】______ are corrected in next update; more 【35】______ bugs can sometimes be fixed with special software, called patches, that circumvents or otherwise 【36】______ its effects. In hardware, a bug is a recurring 【37】______ problem that prevents a system or set of 【38】______ from working together properly. The 【39】______ of the term reputedly goes back to the early days of computer at Harvard University was 【40】______ a moth caught between the contacts of a relay in the machine.
【21】
A．wording
B．term
C．diction
D．insect
第4题
In hardware, a bug is a recurring【37】problem that prevents a system or set of【38】from working together properly. The【39】of the term reputedly goes back to the early days of computing, when a hardware problem in a computer at Harvard University was【40】to a moth caught between the contacts of a relay in the machine.
(21)
A．wording
B．term
C．diction
D．insect
第5题
The so-called "non-intelligence factor" include 【21】______ feelings, will, motivation, interests and habits. After a 30-year follow-up study of 8,000 males, American psychologists 【22】______ that the main cause of disparities in intelligence is not intelligence 【23】______ , but non-intelligence factors including the desire to learn, will-power and self-confidence.
【24】______ people all know that one should have definite objectives, a strong will and good learning habits, quite a number of teachers and parents don't pay much attention to 【25】______ these factors.
Some parents are greatly worried 【26】______ their children fail to do well in their studies. They blame either genetic factors, malnutrition, or laziness, but they never take 【27】______ consideration these non-intelligence factors. At the same time, some teachers don't inquire into these, such as reason 【28】______ students do poorly. They simply give them more course and exercises, or 【29】______ rebuke or ridicule them. After all, these students lose self-confidence. Some of them just feel defeated and 【30】______ themselves up as hopeless. Others may go astray because they are sick of learning. 【31】______ investigation of more than 1,000 middle students in Shanghai showed that 46.5 percent of them were 【32】______ of learning because of examination, 36.4 percent lacked persistence, initiative and conscientiousness and 10.3 percent were sick of learning.
It is clear 【33】______ the lack of cultivation of non-intelligence factors has been a main 【34】______ to intelligence development in teenagers. It even causes an imbalance between physiological and 【35】______ development among a few students.
If we don't start now to 【36】______ the cultivation of non-intelligence factors, it will not only obstruct the development of the 【37】______ of teenagers, but also affect the quality of a whole generation. Some experts have put forward 【38】______ about how to cultivate student's non-intelligence factors.
First, parents and teachers should 【39】______ understand teenage psychology. On this basic, they can help them to pursue the objectives of learning, 【40】______ their interests and toughening their willpower.
【21】
A．one's
B．their
C．his
D．her
第6题
This conclusion does not depend on the unrealistic assumption that we can 【29】______ tobacco. It merely assumes that we can reduce cigarette sales appreciably by raising prices or by 【30】______ on the type of education that already appears to have a 【31】______ effect 【32】______ cigarette assumption by white-collar workers and that we can substantially reduce the amount of tar 【33】______ per cigarette.
The practicability of preventing cancer by such measures applies not only in those countries, such as, the United States of America, because cigarette smoking has been common for decades, 25 to 30 percent of all cancer deaths now involves lung cancer, but also in those where it has become 【34】______ only recently. China is a good example. Countries where cigarette smoking is only becoming widespread can expect enormous increase in lung cancer during the 1990’s or early in the next century, 【35】______ prompt effective action is taken 【36】______ the habit.
There are three reasons 【37】______ the prevention of lung cancer is of such overwhelming importance: first, the disease is extremely common, causing more deaths than any other type of cancer now 【38】______ ; secondly, it is generally incurable; and finally, 【39】______ tobacco consumption will also have a substantial 【40】______ on many other diseases.
【21】
A．publicly
B．hardly
C．widely
D．reliably
第7题
根据下列文章,请回答 21～25 题。
Text 1
I' d like to propose that for sixty to ninety minutes every evening fight after the early evening news, all television broadcasting in America be prohibited by law.
Let us take a serious, reasonable look at what the results might be if such a proposal were accepted. Families might use the time for a real family hour. Without the distraction of TV, they might sit around together after dinner and actually communicate with one another. It is well known that many of our problems -- everything, in fact, from the generation gap to the high divorce rate to some forms of mental illness -- are caused at least in part by failure to communicate. We do not tell each other what makes us feel disturbed. The result is emotional difficulty of one kind or another. By using the quiet family hour to discuss our problems, we might get to know each other better, and to like each other better.
On evenings when such talk is unnecessary, families could rediscover more active pastimes.Freed from TV, forced to find their own activities, they might take a ride together to watch the sunset, or they might take a walk together (remember feet？) and see the neighborhood with fresh new eyes.
With free time and no TV, children and adults might rediscover reading. There is more entertainment in a good book than in a month of typical TV programming. Educators report that the generation growing up with television can barely write an English sentence, even at the college level. Writing is often learned from reading. A more literate new generation could be a product of the quiet hour.
A different form. of reading might also be done, as it was in the past: reading aloud. Few hobbies bring a family closer together than gathering around and listening to mother or father read a good story. The quiet hour could become the story hour. When the quiet hour ends, the TV networks form. our newly discovered activities.
At first glance, the idea of an hour without TV seems radical. What will parents do without the electronic baby-sitter？ How will we spend the time？ But it is not radical at all. It has been only twenty-five years since television came to control American free time. The people who are thirty five and older can remember childhood without television, spent partly with radio -- which at least involved the listener' s imagination -- but also with reading, learning, talking, playing games, in venting new activities. It wasn' t that difficult. Honest. The truth is that we had a ball.
第 21 题 The failure to talk to each other causes all of the following EXCEPT
A．the high divorce rate.
B．a real family hour.
C．the generation gap.
D．some forms of mental illness.
第10题
A.Phase 2 establishment causes distinguish between answer to paging and call re-establishment
B.Phase 2 establishment causes distinguish between MS originated call and answer to paging
C.Phase 2 establishment causes distinguish between location updating and answer to paging
D.Phase 2 establishment causes distinguish between MS originated calls and SMS
E.Phase 2 establishment causes distinguish between call re-establishment and SMS
