适合原理是以估价对象与其外部环境是否协调，来判定估价对象是否为最高最佳使用。它可以帮助确定估价对象的最佳用途。( )
参考答案：对
--- What book are you reading? Wow, Harry Porter! May I have a look at it?
--- Yes, of course. You have it as soon as I get through with it.
A．must
B．should
C．will
D．shall
热水热网系统常采用的定压方式有（）、（）和气体定压。
