问答题What is the more practical issue according to the fifth paragraph?

问答题
What is the more practical issue according to the fifth paragraph?

参考解析

解析:
推理判断题。根据第五段倒数第二句我们可以判断出,这个更现实的问题就是“一个‘抵御洪水’的大坝可能不再安全”。

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