（）联合国在瑞典的斯德哥尔摩召开了联合国人类会议。A、1982年 B、1983年 C、1

905是______的5倍，905的5倍是______．

在△ABC中，∠A，∠B，∠C的度数之比为1：2：3，且AB=2，则BC=______．

材料一我国古代一条著名的商路

材料二今年5月14日，印度 * * 莫迪飞抵西安开始为期3天的访华行程，世界聚焦“西安会见”，为何选择西安？有媒体分析认为，西安与印度有很深的历史文化渊源：贞观初年一位高僧曾从这里出发，前往印度，取得佛经后又回到这里翻译佛经、弘扬佛法。

材料三宋朝的海外贸易超过了前代，成为当时世界上从事海外贸易的重要国家，有闻名世界的大商港。材料四明朝著名的航海家郑和描述船队远航的情景：观夫海洋，洪涛接天，巨浪如山„„而我之云帆高张，昼夜星驰，涉彼狂澜，若履通衢„„

（3）根据材料三写出当时“闻名世界的大商港”。

B Egyptian Villages 埃及村落

Most of the inhabitants live in mud-brick homes, their (1)  walls insulating against the afternoon heat. Flat roofs, exposed (2)  the northern evening breezes, serve as cool sleeping (3)  as well as storage areas. Villagers plaster the outer walls (4)  often trim them in blue, a color they believe (5)  off the evil eye. As a man becomes richer, (6)  can add a second story to his house perhaps (7)  his married son. Those villagers who have made the (8)  to Mecca paint the legend of their trip on (9)  outer walls of their homes. Such hajj houses, along (10)  the mosques, are the most distinguished buildings in a (11)

Some villagers build ornate pigeon coops close to their (12) , using the birds as food and their droppings to (13)  crops. Many houses still have dirt floors and lack (14)  or running water; women with jars balanced on their (15)  make the trek to the community well, and children donkeys haul the (16)  liquid in jerry cans.

All (17)  said, government sponsored building programs have also brought newer (18)  residences and utilities to some villages, particularly those outside (19)  Nile Valley in the Oases and the Red Sea (20)  areas.

19.（）

影响气候的基本因素有哪些？