题目

Don’t you wish those long summer days could last forever? An island in northern Norway is campaigning to do just that.Sommarøy — meaning “Summer Island” — wants to swap its watches for flower garlands and declare itself the world’s first time-free zone.On this island in West Tromsø, north of the Arctic Circle, the sun doesn’t set from May 18 right through to July 26, a full 69 days.The locals, having endured the long polar night from November to January, when the sun doesn’t rise at all, make the most of these precious months, with no regard to conventional timekeeping.“The读北京及环渤海经济圈示意图，完成相关问题．（1）北京位于A______平原北端，B______山脉东侧，是我国历史最悠久的城市之一，请写出北京两个著名历史文化遗迹a______、b______．（2）北京是全国的交通中心，请写出图中代码①和②所代表的经过北京的铁路干线的名称①______、②______．（3）近年来北京面临的日趋严重的环境问题，主要有______、______、______．（4）北京是一座现代化的城市，是环渤海经济圈的核心城市之一，特别是以______科技园区为中心建立了环渤海高新技术密集产业区，为我国北方地区经济发展做出了巨大贡献．