What is the main idea of the passage?
A.The peak period of the circus.
B.The most significant circus development.
C.The rise and fall of the circus.
D.The development of the circus.
正确答案是D
What is the main idea of the passage?
A.The peak period of the circus.
B.The most significant circus development.
C.The rise and fall of the circus.
D.The development of the circus.
正确答案是D