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The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of h
The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of h
admin
2014-06-13
57
问题
The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of human need;【C1】______is truly the mother of invention. People usually devise tools to【C2】______for natural deficiencies. For example, people invented weapons to defend【C3】______from physically superior【C4】______. But【C5】______is only one incentive for inventions. People also invent【C6】______tools to【C7】______certain established tasks more efficiently. For instance, people developed the bow and arrow from the【C8】______spear or javelin in order to shoot【C9】______and strike with greater strength.
【C10】______civilizations developed, greater work efficiency came to be demanded, and【C11】______tools became more【C12】______. A tool would【C13】______a function until it proved【C14】______in meeting human needs, at which point an improvement would be made. One impetus for invention has always been the【C15】______for speed and high-quality results — provided they are achieved【C16】______reasonable costs. Stone pebbles were sufficient to account for small quantities of possessions,【C17】______they were not efficient enough for performing sophisticated mathematics. However, beads arranged systematically evolved into the abacus. The【C18】______of this tool can be【C19】______to the development of commerce in the East around 3000 B.C., and the abacus is known【C20】______by the ancient Babylonians, Egyptians, Chinese, etc..
【C14】
选项
A、inefficient
B、effective
C、adequate
D、sufficient
答案
A
解析
本题测试逻辑搭配。inefficient意为“效率低的,效率差的”;effective意为“有效的,有作用的”:adequate意为“适当的,足够的”;sufficient意为“足够的,充分的”。根据后面的at which point an improvement would be made(需要改进)可知,所填之词应该表示否定之意,只有选A。
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0
考研英语一
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