以下是引用星月狐在2006-3-26 11:11:00的发言：
我还有一道题:E7-10(Based on the growth rates of large modern reptiles such as )the G and examination of fossils of juvenile dino
saurs, scientists estimate that the larger dinosaurs probably lived to be between 100 and 200 years old.
答案是B On the basis of growth rates of large modern reptiles such as 是不是因为based表示被动啊?逻辑主语不是对的吗?
我认为是这样的 | 
