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【单选题】
下列关于珊瑚礁形成与分布的正确叙述是
A.
珊瑚礁的形成过程依次是：岸礁--堡礁--环礁
B.
珊瑚礁形成的每个阶段都伴随着地壳的下沉
C.
大洋洲、南美洲、非洲、亚洲周围的海域均有珊瑚礁分布
D.
堡礁形成伴随着湖泊的出现
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参考解析：
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【单选题】Text 2 We recently sailed with our research ship through the Red Sea to the Indian Ocean where we did research work for about a year. Our main objectives (目标) were the little-known Maldi...
A.
the coral reef exists in regions with warm climate
B.
the coral reef provides favorable living conditions for them
C.
the creatures are away from the danger of being eaten by sharks
D.
most sea creatures feed on the colourful coral