—Do you know Tsering Danzhou, a ten-year-old boy in Yushu?        

—Yes. He           the people his great help as a translator after the earthquake.        [ ]

A. provided    

B. supported    

C. offered  

D. afforded

根据IS－LM模型（）。

A.自发总需求增加，使国民收入减少，利率上升

B.自发总需求增加，使国民收入增加，利率上升

C.货币量增加，使国民收入增加，利率下降

D.货币量增加，使国民收入减少，利率下降