文档介绍:听力填空部分原文和答案
Many college students today owe puters that cost anywhere from $1,000 to perhaps $5,000 or more.(26),at is not mon for them to purchase(27)costing another several hundred dollars. Twenty years ago, computers were(28), but they were very large and extremely expensive. Few, if any,(29)puters for home use . Over the years, the price of the “gats”of puter—its memory—has declined to less than a thousandth of the price per unit of memory that prevailed twenty years ago. This is the main reason puters cost so much less today than they used to. Moreover, (30) improvements have made it possible to (31) memory circuitry that is small enough to fit into the portable puters that many of us own and use. (32) , as the price putation has declined the average consumer and business have spent more on puters.
(33) , improved agricultural technology, hybrid(杂交) seeds,(34) animal breeding, and so on have vastly increased the amount of output a typical farmer can produce. The prices of goods such as meats and grains have fallen sharply relative to the prices of most other goods and services. As agricultural prices have fallen, many households have decreased their total expenses on food. Even though the(35)of a product purchased generally increases when its price falls, total expenses on it may decline.
答案:26-35 In addition; software; available; individuals; technological; manufacture