【单选题】【消耗次数：1】
下列描述正确的是（ ）。。（1.0分）
①
A.2010年4月份的冰岛火山喷发是北美洲板块与欧亚板块碰撞的结果；
②
B.大地水准面是由现代地球平均准平原面所构成并延伸通过高原的封闭曲面；
③
C.通常，侵入岩多为斑状结构，熔岩多为中粗粒结构；
④
D.发生月食的条件是日月相冲于黄道面与白道面交线上。
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