Mr Cooper wanted to buy the house and he told me that      the house cost, it would be      it.

A．however; worth

B．whatever; worth

C．how much; worthy

D．what; worthy of

我国是世界上季风气候最显著的国家之一，其主要原因是(    )

A．地形复杂

B．地势影响

C．纬度位置

D．海陆差异