What was the main cause of the Second World War?
A、The main cause was big power struggle for control of the world.
B、It was the worldwide economic crisis.
C、It was the military expansion of Japan, and Germany.
D、Both B and C
【正确答案】：A
【题目解析】：本题考查第二次世界大战的主要原因。第二次世界大战的主要原因是大国争夺统治世界。
