陆地主要集中在（　　）

①皇权至尊                    ②以儒家思想为主的传统礼制 

③封建王朝的蒸蒸日上          ④我国劳动人民的辛勤和智慧

①I'd like to go with you, ____ I'm too busy．

②It was only five minutes'walk from here, ____ we didn't take a taxi．

③ Suddenly he tripped____fell．____ he woke up．

④You can go on foot, ____ you like．It's not far．

⑤I fell off my bike last Saturday,____ hurt my foot．

正义与民主是当今社会人们津津乐道的社会话题，在古代西方先哲中，首先完整而系统地探究这一问题的是

Point to the desk, please.