In your project，there is：50% probability for $40000 profit，50% probability for $25000 loss．What is the expected profit in your project ？（）

A:$32500 B:$25000 C:$7500 D:-$7500(i.e. loss of $7500)

In your project，there is：50% probability for $40000 profit，50% probability for $25000 loss．What is the expected profit in your project

A:$32500． B:$25000． C:$7500． D:-$7500( loss of $7500)．

William Shakespeare described old age as "second childishness" — sans teeth, sans eyes, sans taste. In the case of taste he may, musically speaking, have been even more perceptive than he realized. A paper in Neurology by Giovanni Frisoni and his colleagues at the National Centre for Research and Care of Alzheimer’s Disease in Brescia, Italy, shows that one form of senile dementia can affect musical desires in ways that suggest a regression, if not to infancy, then at least to a patient’s teens.
Frontotemporal dementia is caused, as its name suggests, by damage to the front and sides of the brain. These regions are concerned with speech, and with such "higher" functions as abstract thinking and judgment. Frontotemporal damage therefore produces different symptoms from the loss of memory associated with Alzheimer’s disease, a more familiar dementia that affects the hippocampus and amygdala in the middle of the brain. Frontotemporal dementia is also rarer than Alzheimer’s. In the past five years the centre in Brescia has treated some 1,500 Alzheimer’s patients; it has seen only 46 with frontotemporal dementia.
Two of those patients interested Dr. Frisoni. One was a 68-year-old lawyer, the other a 73-year-old housewife. Both had undamaged memories, but displayed the sorts of defect associated with frontotemporal dementia—a diagnosis that was confirmed by brain scanning.
About two years after he was first diagnosed, the lawyer, once a classical music lover who referred to pop music as "mere noise", started listening to the Italian pop band "883". As his command of language and his emotional attachments to friends and family deteriorated, he continued to listen to the band at full volume for many hours a day. The housewife had not even had the lawyer’s love of classical music, having never enjoyed music of any sort in the past. But about a year after her diagnosis she became very interested in the songs that her 11-year-old granddaughter was listening to.
This kind of change in musical taste was not seen in any of the Alzheimer’s patients, and thus appears to be specific to those with frontotemporal dementia. And other studies have remarked on how frontotemporal dememia patients sometimes gain new talents. Five sufferers who developed artistic abilities are known. And in another lapse of musical taste, one woman with the disease suddenly started composing and singing country and western songs.
Dr. Frisoni speculates that the illness is causing people to develop a new attitude towards novel experiences. Previous studies of novelty-seeking behavior suggest that it is managed by the brain’s right frontal lobe. A predominance of the right over the left frontal lobe, caused by damage to the latter, might thus lead to a quest for new experience. Alternatively, the damage may have affected some specific neural circuit that is needed to appreciate certain kinds of music. Whether that is a gain or a loss is a different matter. As Dr. Frisoni puts it in his article, De Gustibus Non Disputandum Est. Or, in plainer words, there is no accounting for taste.
Which one is NOT a symptom of Frototemporal dementia

A:The loss of memory. B:The loss of judgment. C:The loss of abstract thinking. D:The loss of speec

William Shakespeare described old age as "second childishness" — sans teeth, sans eyes, sans taste. In the case of taste he may, musically speaking, have been even more perceptive than he realized. A paper in Neurology by Giovanni Frisoni and his colleagues at the National Centre for Research and Care of Alzheimer’s Disease in Brescia, Italy, shows that one form of senile dementia can affect musical desires in ways that suggest a regression, if not to infancy, then at least to a patient’s teens.
Frontotemporal dementia is caused, as its name suggests, by damage to the front and sides of the brain. These regions are concerned with speech, and with such "higher" functions as abstract thinking and judgment. Frontotemporal damage therefore produces different symptoms from the loss of memory associated with Alzheimer’s disease, a more familiar dementia that affects the hippocampus and amygdala in the middle of the brain. Frontotemporal dementia is also rarer than Alzheimer’s. In the past five years the centre in Brescia has treated some 1,500 Alzheimer’s patients; it has seen only 46 with frontotemporal dementia.
Two of those patients interested Dr. Frisoni. One was a 68-year-old lawyer, the other a 73-year-old housewife. Both had undamaged memories, but displayed the sorts of defect associated with frontotemporal dementia—a diagnosis that was confirmed by brain scanning.
About two years after he was first diagnosed, the lawyer, once a classical music lover who referred to pop music as "mere noise", started listening to the Italian pop band "883". As his command of language and his emotional attachments to friends and family deteriorated, he continued to listen to the band at full volume for many hours a day. The housewife had not even had the lawyer’s love of classical music, having never enjoyed music of any sort in the past. But about a year after her diagnosis she became very interested in the songs that her 11-year-old granddaughter was listening to.
This kind of change in musical taste was not seen in any of the Alzheimer’s patients, and thus appears to be specific to those with frontotemporal dementia. And other studies have remarked on how frontotemporal dememia patients sometimes gain new talents. Five sufferers who developed artistic abilities are known. And in another lapse of musical taste, one woman with the disease suddenly started composing and singing country and western songs.
Dr. Frisoni speculates that the illness is causing people to develop a new attitude towards novel experiences. Previous studies of novelty-seeking behavior suggest that it is managed by the brain’s right frontal lobe. A predominance of the right over the left frontal lobe, caused by damage to the latter, might thus lead to a quest for new experience. Alternatively, the damage may have affected some specific neural circuit that is needed to appreciate certain kinds of music. Whether that is a gain or a loss is a different matter. As Dr. Frisoni puts it in his article, De Gustibus Non Disputandum Est. Or, in plainer words, there is no accounting for taste.

Which one is NOT a symptom of Frototemporal dementia（）

A:The loss of memory. B:The loss of judgment. C:The loss of abstract thinking. D:The loss of speech.

Gerontologists (老年人问题学者) study how old people are treated within a society and how the elderly deal with the inevitable problems of aging, particularly those involving health and income. Health problems include normal losses in hearing, eyesight, and memory, and the increased possibility of chronic(慢性的)diseases. These losses are gradual and proceed at different rates for each individual. In general, the health of old people today is better than that of earlier generation-a condition that is likely to improve still further as more people receive better medical care throught their lives.
Because most old people are no longer in the labor force, a steady source of income is necessary. Systems of pensions and benefits are characteristic of industrial societies. One example is Social Security in the U. S. , which is now increased automatically as the cost of living rises, thus reducing somewhat the effect of inflation.
Although the income of retired people is about half that of working people, most manage to remain financially independent.
Income needs and health are what people consider most when they decide whether to re-tire or not. Putting an end to the limit on the retirement age is not expected to cause many workers to stay on the job if they can afford to retire. The need to relieve strains on the Social Security System, however, has led to legislation that gradually raises the age at which people can get full benefits. This might force them to work longer in the future.
Elderly people themselves often display high spirits, satisfaction with life, and feelings of self-worth. The important factors are health and income. The task of modern societies is to ensure that the aged have their basic needs met and that they can continue to function in the community.
According to the first paragraph, which of the following is NOT a problem of aging

A:Gradual loss of hearing. B:Gradual loss of courage. C:Gradual loss of sight. D:Gradual loss of memory.

{{B}}第三篇{{/B}}

According to the first paragraph, which of the following is NOT a problem of aging?

A:Gradual loss of hearing. B:Gradual loss of courage. C:Gradual loss of sight. D:Gradual loss of memory.

{{B}}第三篇{{/B}}

According to the first paragraph, which of the following is NOT a problem of aging?

A:Gradual loss of hearing. B:Gradual loss of courage. C:Gradual loss of sight. D:Gradual loss of memory.

{{B}}第三篇{{/B}}

According to the first paragraph, which of the following is NOT a problem of aging?

A:Gradual loss of hearing. B:Gradual loss of courage. C:Gradual loss of sight. D:Gradual loss of memory.

Problems of the Elderly
Gerontologists (老年人问题学者) study how old people are treated within a society and how the elderly deal with the inevitable problems of aging, particularly those involving health and income. Health problems include normal losses in hearing, eyesight, and memory, and the increased possibility of chronic(慢性的)diseases. These losses are gradual and proceed at different rates for each individual. In general, the health of old people today is better than that of earlier generation-a condition that is likely to improve still further as more people receive better medical care throught their lives.
Because most old people are no longer in the labor force, a steady source of income is necessary. Systems of pensions and benefits are characteristic of industrial societies. One example is Social Security in the U. S. , which is now increased automatically as the cost of living rises. thus reducing somewhat the effect of inflation.
Although the income of retired people is about half that of working people, most manage to remain financially independent.
Income needs and health are what people consider most when they decide whether to retire or not. Putting an end to the limit on the retirement age is not expected to cause many workers to stay on the job if they can afford to retire. The need to relieve strains on the Social Security System, however, has led to legislation that gradually raises the age at which people can get full benefits. This might force them to work longer in the future.
Elderly people themselves often display high spirits, satisfaction with life, and feelings of selfworth. The important factors are health and income. The task of modern societies is to ensure that the aged have their basic needs met and that they can continue to function in the community.
According to the first paragraph, which of the following is NOT a problem of aging

A:Gradual loss of hearing. B:Gradual loss of courage. C:Gradual loss of sight. D:Gradual loss of memory.