以下不属于城镇体系规划的主要作用的是（）。
A．指导总体规划编制，发挥上下衔接的功能
B．承接上一级规划，把国民经济和社会发展计划落到实处
C．全面考察区域发展态势，发挥对重大开发建设项目及重大基础设施布局的综合指导功能
D．综合评价区域发展基础，发挥资源保护和利用的统筹功能
参考答案：B
解析：
城镇体系规划一方面需要合理地解决体系内部各要素之间的相互联系及相互关系，另一方面又需要协调体系与外部环境之间的关系。作为致力于追求体系整体最佳效益的城镇体系规划，其作用主要体现在区域统筹协调发展上：①指导总体规划编制，发挥上下衔接的功能，对实现区域层面的规划与城市总体规划的有效衔接意义重大；②全面考察区域发展态势，发挥对重大开发建设项目及重大基础设施布局的综合指导功能。避免“就城市论城市”的思想，从区域整体效益最优化的角度实现重大基础设施的合力布局；③综合评价区域发展基础，发挥资源保护和利用的统筹功能；④协调区域城市间的发展，促进城市之间形成有序竞争与合作的关系。
| If you left your book on the table overnight, you would find the following morning that it was still exactly where you had left it, provided nobody had moved it. If a ball is made to roll on a very smooth surface, it will roll a long distance unless something stops it or changes its direction. This tendency of an object to remain at rest unless something moves it and to continue moving unless something stops it is known as the Law of Inertia. The following examples show the truth of this law. (a) Put a table-cloth on a table and arrange a pile of books on it. Hold one edge of the table-cloth and pull it quickly. The table-cloth will come off, leaving the pile of books undisturbed. (b) Place a small piece of cardboard on an open jar and place a coin on it directly over its mouth. Use one finger to flick the piece of cardboard away. You will notice that the coin drops into the jar. (c) Sitting in a car which starts suddenly, you feel you are jerked backwards. In fact, you are not jerked backwards. Your lower half, which is in contact with the cushion, is forced to move forward with the car, and the upper part of your body, which remained at rest, is left behind. |
A ball with a smooth surface made to roll on a very smooth surface would ______.
A．remove its surface
B．meet some objects
C．roll a long distance
D．change its direction