我国农村的宅基地属集体所有，农民只能使用，不能买卖、出租和继承。宅基地制度保证了农民

阅读材料并结合所学知识，回答下列问题。

材料一 战国时期手工业分布和商业城市图

（1）根据材料一指出战国时期商业中心的分布有哪些特点？

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材料二 自是之后，荥阳下引河东南为鸿沟，以通宋、郑、陈、蔡、曹、卫，与济、汝、淮、泗会。于楚，西方则通渠汉水、云梦之野，东方则通沟江淮之间。于吴，则通渠三江、五湖。于齐，则通淄济之间。……此渠皆可行舟，有余则用溉浸，百姓飧其利。 ——（汉）司马迁《史记》卷二十九《河渠书》

（2）有学者认为战国时期中原地区已形成了比较完整的水上交通网。根据材料一、二，指出战国时期人们通过什么途径沟通江河？结合所学知识，概括指出当时人们能够通过这一途径沟通江河的技术条件。

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材料三 （秦）司马错率巴、蜀众十万，大舶船万艘，米六百万斛，浮江伐楚，取商於之地为黔中郡。——《华阳国志·蜀志》

（3）结合上述材料，简析战国时期的水上交通网可能起到的作用。

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标定地价是指在一定时期和一定条件下，能代表不同区位、不同用途地价水平的标志性宗地的价格。

The pyramids Some of the most interesting building in the world are the pyramids. The pyramids stand huge and silent, and in modern days, people look at them and wonder, "Who built them’ Why When What is in- side’ How did they do it " Thousands of years ago in Egypt, kings built the pyramids. They used to build them as (1) ______. The kings [1] ______thought the pyramids would help them find life after (2) ______, [2] ______-- ,and join Ra in his journeys (3) ______ life sky. [3] ______ They also wanted the world to remember them as important peo- ple. Some pyramids were found by thieves who in fact found their way into the pyramids and into most of the pharaoh’s tombs. The tombs were still full of treasure. [4] ______ There are many pyramids along the (4) ______ River. [5] ______The (5) ______ is the pyramid of Khufa. It is made of 2,300, [6] ______ 000 huge (6) ______ ,most of them higher than a person, It is about 144 meters high. Inside the pyramid are the burial rooms for the king and queen and long passageways to these rooms. The rest of the pyramid is solid stone. [7] ______ Workers usually built the pyramids when the flood began in (7) ______ and they could not work on their farms. To build the pyramid of Khufu, 100,000 men worked for twenty years. We know there were wonderful treasures in the pyramids:Robbers went into the pyramids and took many of these treas- ures. Today some of the treasures are in museums, though. How did the people of ancient days build the pyramidsHow did they carry and lift the huge stones Each stone fit so [8] ______ well and they didn’t have our modern machines! The ancient [9] ______ (8) ______ in Egyptian tombs give us some ideas. The workersused (9) ______, levers and rollers to move stones. Besides [10] ______ the Egyptian pyramids, there are also great pyramids in (10) ______ which were used for human sacrifice and different from Egyptian tombs in shape and other aspects.

从营销学的角度出发，网络营销是为实现企业总体经营目标所进行的、以互联网为基础手段营造网上经营环境的各种活动。

用人单位未办理社会保险登记的，由人民法院核定其应当缴纳的社会保险费。