赤道是最长的纬线，它的周长约为（    ）

I saw the doctor_____ in the city of Shanghai last year. Maybe he comes from Shanghai.  

四大盆地中，海拔最高的是（    ）

阅读理解，判断正（√）误（X）

    I went to Chengdu three years ago. It is in Sichuan Province(省). It is the capital of Sichuan. It is in the west of China. The famous Chinese pandas live in Sichuan. I took some pictures for them. I climbed the mountains(山) with my parents.We had an interesting life.