咏“水”：____，____。（陆游《游山西村》）
根据短文，选择正确答案。
Some cats are black. Some cats are white. Some cats are black and white. But no cats are green. I have a mother cat. She has three sons and two daughters. The mother cat loves her sons and daughters and they love their mother very much. And she looks after them.
— No problem. Here you are.
将一小粒金属钠投入到盛有无水乙醇的小烧杯中，以下描述合理的是（ ）
我国四大海域从北到南依次排列正确的是( )
