作业帮写自我介绍作文(英语作文).
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/21 10:05:17
写自我介绍作文(英语作文).
To introduce myself
Hello,every one!
My name is **** .
I'm a 15 years old boy.
I live in the beautiful city of Rizhao.
I'm an active ,lovely and clever boy.）
In the school ,my favourite subject is maths .
Perhaps someone thinks it's difficult to study well .
But I like it.
I belive that if you try your best,everything can be done well.
I also like sports very much.
Such as,running,volleyball and so on.
I'm kind-hearted.
If you need help ,please come to me .
I hope we can be good friends!
OK.This is me .A sunny boy.（
再问： 请问把质量分数为5.3%的碳酸钠溶液蒸发掉60g水后，溶液变成了20mL，质量分数变为15.9%，则浓缩后中碳酸钠的物质的 量的浓度为多少呢？
再答： 这不应该是初一的吧...？
再问： 不好意思，那请问你是读几年级呢？
再答： 初三........
Hello,every one!
My name is **** .
I'm a 15 years old boy.
I live in the beautiful city of Rizhao.
I'm an active ,lovely and clever boy.）
In the school ,my favourite subject is maths .
Perhaps someone thinks it's difficult to study well .
But I like it.
I belive that if you try your best,everything can be done well.
I also like sports very much.
Such as,running,volleyball and so on.
I'm kind-hearted.
If you need help ,please come to me .
I hope we can be good friends!
OK.This is me .A sunny boy.（
再问： 请问把质量分数为5.3%的碳酸钠溶液蒸发掉60g水后，溶液变成了20mL，质量分数变为15.9%，则浓缩后中碳酸钠的物质的 量的浓度为多少呢？
再答： 这不应该是初一的吧...？
再问： 不好意思，那请问你是读几年级呢？
再答： 初三........