把雅典的奴隶制民主政治制度发展到古代世界最高峰的人物是( )
A:伯里克利
B:胡夫
C:马可·波罗
D:亚历山大
Steve's activity on Sunday
In the past
He spent most of the time 1.
He learnt it from his 2 and he is good at it.
Now
He spends at least 3 hours collecting rubbish.
He would like to protect the beach.
宏伟的长城是我国古代劳动人民智慧和独创性的象征,秦长城的起止点是( )