A-A+ Even before the treaties were ______ the per 2022-08-06 23:41:13 问答库 阅读 181 次 问题详情 Even before the treaties were ______, the "permanent Indian frontier" was moved farther west,A．invalidatedB．provedC．ratifiedD．refuted请帮忙给出正确答案和分析，谢谢！ 参考答案 正确答案：A
