[单项选择]An increasing proportion of our population, unable to live without advanced medical ______, will become progressively more reliant on expensive technology.

[单项选择]An increasing proportion of our population, unable to live without advanced medical will become progressively more reliant on expensive technology.
A. interference
B. interruption
C. intervention
D. interaction

[填空题]The increasing proportion of older People is one of the reasons why home health care grows fastest today.

[填空题]The increasing proportion of older people is one of the reasons why home health care grows fastest today.

[单项选择]
A very important world problem is the increasing number of people who actually inhabit this planet. The limited amount of land and land resources will soon be unable to support the huge population if it continues to grow at its present rate.
So why is this huge increase in population taking place It is really due to the spread of the knowledge and practice of what is becoming known as "Death Control". You have no doubt heard of the term "Birth Control". "Death Control" is something rather different. It recognizes the work of the doctors and scientists who now keep alive people who, not very long ago, would have died of a variety of then incurable diseases. Through a wide variety of technological innovations that include farming methods and the control of deadly diseases, we have found ways to reduce the rate at which we die. However, this success is the very cause of the greatest threat to mankind.
If w
A. Birth explosion.
B. Birth Control.
C. Technological innovations.
D. Death Control.

[简答题]人群归因危险百分比(population attributable risk proportion，PARP)

[单项选择]

If the population of the earth goes on increasing at its current rate, there will eventually not be enough resources left to sustain life in the planet. By the middle of the 21 st century, if present trends go on, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on the earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however, has recently been suggested by an American scientist, Professor Cart Sagan.
　　Sagan believes that before the earth’s resources are completely exhausted it will be possible to change that atmosphere of Venus and so create a new world almost as large as the earth itself. The difficulty is that Venus is much hotter than the earth and there is only a tiny amount of water there.
　　Sag
A. Lack of oil.
B. Lack of food.
C. Lack of space.
D. Lack of resources.