语法与词汇 The drill ship was able to maintain a steady position on the ocean’s surface and drill in very deep waters, ______samples of sediments and rock from the ocean floor.
【正确答案】 D
【答案解析】本题考查动词的含义。A延缓，推迟；B定位，定居；C分配，分发；D提取，取出。该句的大意为：钻探船能够在海面保持稳定的位置，并能够钻进深海，从海底提取沉积物和岩石样本。