太行山脉的东侧是_____平原，西侧是________高原。
华北；黄土
根据句意和首字母完成句子。
1. Let's go up the m______, I want to get the top first.
2. They can run very f______.
3. These animals are our f______.
4. We shouldn't w______ too much water.
5. Please turn off the light w______ leave the room.
检修设备时常用哪些工具？
