最近，我对我们班上的30个男孩和20个女孩做了一个关于他们吃早餐情况的调查。这是我的调查结果。

Recently, I have done a research among 30 boys and 20 girls in my class about the situation that they have breakfast. Here is the result of my survey.

youdao

最近，我对我们班上的30个男孩和20个女孩做了一个关于他们吃早餐情况的调查。这是我的调查结果。

Recently, I have done a research among 30 boys and 20 girls in my class about the situation that they have breakfast. Here is the result of my survey.

youdao