读“中国地形分布图”，回答：

（1）写出图中数码号所代表的地理名称 ①_______________山脉； ②_______________山脉； ③_       

                      山脉； ④_______________高原； ⑤ ______________山脉； ⑥________________盆地；

     ⑦____                盆地； ⑧________________平原。 ⑨_______________平原。 

（2）请在图中用不同符号画出地势三阶段的范围。

（3）简要说明地势三阶段海拔高度、主要地形类型。

（4）我国地势特点是：                                                                                                                           其对气候、河流、交通等的影响，主要表现在：                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       （5）如果我国的地势与目前的正好相反，将会带来怎样的影响？                                                                                                                                                                                                                                                                                                                          

中型非营运载客汽车使用年限（）年，延缓期限（）年。