After a day's exhausting climb we arrived at ________ we had been told was Garden in the Air.

A．what

B．which

C．that

D．where

经济合同法是指（）相互之间，为实现一定经济目的，明确相互权利义务而订立的协议。

A.具有平等民事主体的法人

B.其他经济组织

C.公民

D.农民