(单选题)

Which of the following can be the best title of the article?

A.Harp seals on the thin ice after 32 years of warming.

B.Ice in the North Atlantic is disappearing.

C.Female harp seals are shortening their nursing periods.

D.Harp seals moving to new homes.

参考答案：A

参考解析：

主旨大意题。文章在第一段提出了在过去32年里，因北大西洋的变暖导致海豹死亡率急剧上升的现象，后面都是在通过各种数据和事实来阐述这一现象以及未来可行的解决办法。故选A。

知识点：