下列示意图中，正确反映罪恶的“三角贸易”航程的是（    ）

1932年，美国全国的失业者举行向自都的“饥饿进军”，公开拥护共产主义与公然赞成法西斯主义的既有知识分子，又有议员。有的文教界、新闻界及宗教人士公开赞扬苏联的制度，认为只有实行阶级斗争和共产主义才能解决危机。这反映出“大萧条”（    ）

如图，已知直线l有两条可以左右移动的线段：AB=m，CD=n，且m，n满足|m﹣4|+（n﹣8）²=0．

阅读理解。
A
    How do you go to school?  
   Sally： My school is not far from my home. It is about three kilometers. I usually walk to school, but sometimes I go to school by bike.
   Nick： My mother usually drives me to school. But when Aunt Lucy is here, I walk with her. It takes me 7 minutes by car or 25 minutes on foot.
   Mary：I go to school on the school bus. The bus comes at 8: 35 am and I get to school at 8: 50 am. I love to take the school bus because my best friend Linda takes it with me. We have lots of fun.

如图在等腰△ABC中，其中AB=AC，∠A=40°，P是△ABC内一点，且∠1=∠2，则∠BPC等于（　　）