亚洲男人天堂av,国产一区二区久久精品,国产精品一区二区久久精品,国产精品久久久久久一区二区三区,五月婷婷在线观看视频,亚洲狠狠色丁香婷婷综合

歡迎您訪問數學考題練習:幾年來國家發展西部戰略取得顯著成效,如圖是西部!

數學考題練習:幾年來國家發展西部戰略取得顯著成效,如圖是西部

更新時間:2024-01-12 16:39:24作者:貝語網校

幾年來國家發展西部戰略取得顯著成效,如圖是西部農村某地區人均收入每一年比上一年的增長率折線圖,已知2006年居民年人均收入為6000元,根據圖中提供的信息,給出下列結論:①農村居民年人均收入最多的是2007年;②2005年農村居民年人均收入為元;③2008年農村居民年人均收入為6000(1+12.1%)(1+13.6%)元;④2006年農村居民年收入比2005年多,其中正確的是

A.①②③④

B.①④

C.②③④

D.②③

試題答案

C

試題解析

解決本題需要從統計圖獲取信息,通過圖形可以得到每年比上一年的增長率,并且每年的增長率都是正值,則每年的收入總是比上一年有增長,依據增長以后的收入=增長以前的收入(1+增長率),即可進行判斷.

解答:①2007年農村居民年人均收入是6000(1+13.6%)元,而2008年農村居民年人均收入為6000(1+12.1%)(1+13.6%)元,2008年比2007年的多,所以錯誤;

由題意,結合圖形可知②③④都正確.

故選C.

點評:本題考查折線統計圖的運用,折線統計圖表示的是事物的變化情況.

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |