It is hard for me to imagine what I would be doing today if I ____ in love, at the age of seven, with the

Melinda Coz Library in my hometown.[ ]

A. wouldn’t have fallen    

B. hadn’t fallen  

C. should fall    

D. were to fall

“一定的文化系统是人们适应不同环境的产物”一句，体现了心理文化研究的哪项原则（）。

A、普遍性原则

B、整体性原则

C、相对性原则

D、关联性原则