【题目】读图，下列农业规划符合因地制宜、可持续发展原则的是
A.①利用肥沃的黑土种植甘蔗
B.②沿海发展海水养殖业
C.③围湖造田，扩大耕地面积
D.④开垦草原，发展种植业
【答案】B
【解析】
我国各地自然环境存在很大差异，每个地区都有农业发展上的优势和不足。利用当地自然条件的优势，把要发展的农业部门或农作物，布局在适宜它本身发展、生长最有利的地区，宜粮则粮、宜林则林、宜渔则渔、宜牧则牧，是因地制宜的重要内容之一。
据图可知，图中①地为东北平原，其可利用肥沃的黑土种植甜菜、大豆等，甘蔗主要分布在南方地区，在东北平原种植甘蔗不符合因地制宜原则，故A错误；②地为山东省的沿海地区，可以发展海水养殖业，符合因地制宜的原则。故B正确。③地为长江中下游地区，该地区围湖造田，会造成长江流域的洪涝灾害，不符合因地制宜原则，故C错误。④地为内蒙古高原，开垦草原会造成土地荒漠化现象，不符合因地制宜原则，故D错误。故选：B。
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