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It is hard to imagine life without Arabic numerals (数字). No other number system ever invented has a simple way to write a number
It is hard to imagine life without Arabic numerals (数字). No other number system ever invented has a simple way to write a number
admin
2019-10-28
50
问题
It is hard to imagine life without Arabic numerals (数字). No other number system ever invented has a simple way to write a number like 1984. In Roman numerals, it comes out like this: MCMLXXXIV. Imagine how difficult it would be for a school pupil to remember it!
The Arabs, however, call their numbers "Indian numerals". This is probably because they got the original idea a long time ago from India. There were no printed newspapers or scientific magazines then, so mathematics traveled along the same routes that silk did, as businessmen sold and bought goods. The Arabs took the new numbers and made improvements that quickly led to advances in technology.
The achievement of Arabic technology can be seen from a passage in a 10th-century book about an Arabic city:"The neighbouring country showed the results of careful work in agriculture, trade, and industry. Rice and many other plants were grown in fields with water supplied by Arab engineers. The city included 900 public baths, stone-covered streets, fountains, and beautiful buildings. " At this time, London was a small town with dirty streets, and Berlin was a farming village. In fact, cities outside the Arab world did not reach the same level of social development until centuries later.
The Arabs call their numerals "Indian numerals" because______.
选项
A、the numerals are mainly used in India
B、they copied numerals from Indians
C、Arabic numerals were first used by Indian businessmen
D、they got some ideas about numbers from the ancient Indians
答案
D
解析
根据第二段前两句“The Arabs,however,call their numbers‘Indian numerals’.This is probably because they got the original idea a long time ago from India.”可知,阿拉伯人很久之前从印度那里得到了一些关于数字的启示,因此他们将自己的数字称为“印度数字”。故选D。
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