土壤物理性质相对最好的土壤结构体类型为柱状结构体。
参考答案：错
读短文，判断正误，对的打“√”，错的打“×”。
Hello! My name is Yao Ming. I'm a basketball (篮球) player. I am twenty-six years old. I live in
China now.
( ) 1. Her name is Yao Ming.
( ) 2. Yao Ming is a basketball player.
( ) 3. He is twenty-six years old.
( ) 4. Yao Ming lives in China.
锅炉缺水的现象、原因及处理方法是什么？
