问题描述：
关于英语句式的一个问题
“Such hazardous impacts (has)have the problem exerted on society,there is much reason to justify the attention to its root.”这一句中应该用have 还是has?
“Such hazardous impacts (has)have the problem exerted on society,there is much reason to justify the attention to its root.”这一句中应该用have 还是has?
问题解答：
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