阿司匹林、氨基比林引起服用者有时出现溶血现象，这是因为（）

A.这两种药物可引起人红细胞溶解

B.载体一半抗原结合效应所致

C.由于激活了补体而使红细胞溶解

D.由针对药物的抗体引起

E.以上都正确

According to the speaker, what happened in the U.S. in the 1940s around the time of the Second World War that affected the popularity of the regionalist art

A．The populations of small towns increased rapidly.

B．Art critics in cities began to take notice of regionalism.

C．Some regionalist painters began a new art movement.

D．Society became more internationally focused.