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【单选题】

世界上最大的珊瑚礁群大堡礁位于()。

A.
新西兰
B.
墨西哥
C.
印度
D.
澳大利亚
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参考答案:
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