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【试题设计】阅读图文材料,回答下列问题。材料一巴尔喀什湖(图1中的A湖)是位于哈萨克斯坦共和国东部的一个内流湖。湖泊西半部的湖水平均含盐量为1.48‰,东半部的平均含盐量高达10.4‰。湖泊北岸为著名的铜矿带,炼铜工业发达,且与哈萨克斯坦和中亚重要城市有铁路连接。材料二为监测和掌握巴尔喀什湖湖岸推移或退缩的具体变化情况,研究人员围绕湖面四周选取14个岸边参照点(图1),以1977年为参照,监测并分析出1990年、1998年、2011年、2014年的湖岸迁移量(图2,
【Test Design】 Reading graphic materials, answer the following questions. Material Lake Balkhash (Lake A in Figure 1) is an influx of lakes located in the eastern part of the Republic of Kazakhstan. The average salinity of lakes in the western half of the lake is 1.48 ‰, while the average salinity in the eastern half reaches as high as 10.4 ‰. The northern bank of the lake is a well-known copper belt with well developed copper smelting industry and rail links with major cities in Kazakhstan and Central Asia. In order to monitor and grasp the specific changes of the shift or withdrawal of the shore of Lake Balkhash, the researchers selected 14 shoreline reference points (Figure 1) around the lake surface. Taking 1977 as the reference, the monitoring and analysis of 1990, 1998 , The amount of lakeshore migration in 2011 and 2014 (Figure 2,