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计数,人类最原始的社会活动之一,在文字出现以前就已有之。在原始社会,人们结绳以记农事,这算是最古老的计数方法了;在后来到了奴隶社会,人们之间进行的物物等价交换,更是离不开计数;即使是到科学技术高度发达的现代社会,计数仍还是人们活动不可或缺的手段。计数,有简单的,也有复杂的。简单的,如人们要组团去旅游了,数一数人数有
Counting, one of humanity’s most primitive social activities, existed before the appearance of writing. In the primitive society, people knotted to record farming, which was the oldest counting method. Later, in the slave society, people’s exchanges of objects were counted without even counting; even at the height of science and technology. In the advanced modern society, counting is still an indispensable means for people’s activities. Counting is simple and complicated. Simple, if people want to organize tours, count the number of people