我国水资源分布不均,且水土资源匹配不合理,下列地区中缺水最严重的是( )
Hello. I am Amy. I am eight years old. Today is my birthday. Look, I have a birthday cake. I have juice and rice for dinner. And I have many gifts, too. A red toy monkey, two new bags and five storybooks. I am so happy today.
解二元一次方程组: {3x+2y=192x−y=1 .