...们的□息地 Living Things and Their Habitats) 课堂练习: 一百以内数表 (Activity: a Hundred Table) 整数的数位 (Place Value) 食物链 (The Food Chain)》,很受欢迎这是我在网上看到的一篇文章,心里很有些感触,虽然我们不能改变现有的体制,不过扩大家长...
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pai也是个无理数,它的小数位有无限多,而且pai无法写成了两个整数的比值。
It's also an irrational number, with an infinite number of decimal places and can't be written as a ratio of two whole Numbers.
将数字四舍五入到指定的小数位数,或如果未指定小数位数,则四舍五入为整数。
Rounds a number to a specified number of decimal places or to a whole number if no decimal places are specified.
所有的国家都使用相同的字符来分隔小数部分和整数部分,或对数位进行分组。
All countries do not use the same characters for separating the decimal part from the integer part, and for grouping digits.
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