百度试题 结果1 题目62.(23-24八年级上上海徐汇中)Who firstinvent the number 0?(invention) 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
The child appeared to master the n + 1 combinations just before the invention of counting-on. This suggests he used a number-after rule for n + 1 combinations as a scaffold for constructing a counting-on strategy. (For example, if the sum of 7 + 1 is the number after seven in the ...
来自 ResearchGate 喜欢 0 阅读量: 2041 作者: M Vicinus 摘要: In lieu of an abstract, here is a brief excerpt of the content: html_title /html_title Reviewed by Martha Vicinus (bio) Hermaphrodites and the Medical Invention of Sex , by Alice Domurat Dreger; pp. xiii + 268. Cambridge ...
ahealthy diet doesnt mean single source of nutrines, it should come from varies of food. 健康饮食不意味nutrines的唯一来源,它应该来自变化食物。[translate] aThis time, a pig came here.The fox want to catch the pig,but he lethargy,he is fall down. 这时,猪来这里。狐狸想要捉住猪,但他慵倦...
故选D。(3)F.根据后句"For example,the number "one" is shown in turn by two white stripes(条),例如,数字"1"由两条白色条纹依次显示,"可知说的是条纹的颜色,结合选项,应说它们是黑色或白色的,表示数字0到9。故选F。(4)E.根据前句"two black stripes,two white stripes,and one black stripe两个...
根据文中最后Finally, people began to develop systems of written marks to show different numbers, and this led to the Hindu-Arabic system (0-9).可以看出the Hindu-Arabic system我们今天仍然在用。故答案为:The Hindu-Arabic system。 (5) 全文理解题。从全文来看,一共提到了用手指、脚趾,在棍子和...
This invention relates to typing machines and more particularly to associated mechanism for keeping count of the number of items or the like as they are typed severally on a work sheet. One use of such mechanism is to ascertain whether all of a certain number or gathering of items have been...
Everyone knows at least two — his orher own language and the international language of numbers.Ancient numbersIn ancient times,people wrote numbers in many different ways.However,they nearly all countedin tens.ZeroThe system ofnumbers today consists of the numbers from 1 to 9 and 0.The ...
My invention relates to a measuring device, and more particularly to a device for mixing determined amounts of ingredients, such as different liquids, to obtain a desired blend. Another object of my invention is to provide means for accurately measuring different ingredients of paints, and...收藏...
Counting before numbers Before the invention of written numbers, people used many different ways to count things.At first, people used their fingers, and even their toes.However, they could only count small numbers in this way.After that, they began to make small marks on sticks and bones. ...