2. 外语
  3. In the next 40 years, the percentage of people in the United States over the age of 65 is expected to double.【C1】______the needs

In the next 40 years, the percentage of people in the United States over the age of 65 is expected to double.【C1】______the needs

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问题    In the next 40 years, the percentage of people in the United States over the age of 65 is expected to double.【C1】______the needs of this part of the population is a【C2】______to the ingenuity or genius of America. To a【C3】______degree, a society is judged by【C4】______it cares for those who can no【C5】______care for themselves. High technology【C6】______the most startling advances in helping the elderly. In【C7】______to the well-known artificial heart implantation, there are efforts that have already started to【C8】______artificial lungs, livers, and bones. An electric ear is【C9】______seventy-five percent effective. They will【C10】______better medical care by【C11】______very small dose of drugs into the body continuously.
   For the older people, even the simplest tasks can be difficult,【C12】______impossible to perform, American businesses have responded【C13】______those older people’s needs with a【C14】______of inexpensive but useful【C15】______. Companies have designed extra-efficient can openers that【C16】______people whose hands have become【C17】______weak to open cans easily. There are devices that allow people to pull on a pair of socks【C18】______straining their backs. Combs with long handles and U-shaped back brushes are【C19】______for those who can not reach as far as they could【C20】______they were young.
【C14】
选项 A、set
B、variety
C、series
D、group
答案B
解析 本题考查词的搭配及其用法。四个选项都能与上下文的词构成表示数量的短语。[A]a set of“一套”；[B]a variety of“各式各样的”；[C]a series of“一系列的”；[D]a group of(“一组”，根据上下文，a variety of更符合句意，因此选[B]variety，此处指各种各样廉价实用的产品。
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