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【单选题】

夏威夷群岛中的库尔岛、中途岛等珊瑚礁呈()排列

A.
西北-东南
B.
东北-西南
C.
西南-东北
D.
东南-西北
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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

【单选题】()是海南岛海岸珊瑚礁的主要类型。

A.
平直岸礁
B.
海湾岸礁
C.
泻湖岸礁
D.
小岛岸礁