题目

英语翻译
Rules for determining significant zeros.
1.
Zeros appearing between nonzero digits are significant.
2.
Zeros appearing in front of all nonzero digits are not significant.
3.
Zeros at the end of a number and to the right of a decimal point are
significant.
4.
Zeros at the end of a number but to the left of a decimal point may not been
measured or estimated but is just a placeholder,it is not significant.A decimal
point placed after zeros indicates that they are significant.

提问时间：2020-07-04

答案

有意义“0”数的确定的规则：
1.在非0数字之间出现的0是有意义的；
2.在非0数字之前出现是无意义的；
3.数字后面的0在小数点前面的是有意义的；
4.数字后面的0在小数点的后面,既不是测量的也不是估值的,仅是作为占位的是没有意义的；
5.在小数点前面的0是有意义的