中共处理西安事变和皖南事变分别采取了和平解决和坚决回击的策略方针，这两种不同策略方针的共同作用是[ ]

A．维护了抗日民族统一战线                

B．加强了国共两党的亲密合作  

C．有利于抗日救亡运动的发展              

D．挫败了国民党亲日派的阴谋

Thanksgiving Day offers the Americans an opportunity to join in a spirit of fellowship and express____

for the year's bonuses and blessings. [ ]

A. consideration        

B. resolution    

C. appreciation          

D. reflecti on