印第安水权那篇阅读 求NN进来帮忙看下 搜了好多前辈贴子依然不明白

miffyhui

当时看这篇文章的时候我个人认为，If （1），（2），and（3）是必须同时满足的，不是，If （1），（2），or（3）---不知道对不
所以如果不满足其中一条都不可以
根据文章的结构前面讲的是必须满足这些条件，后面部分是特例
Some American Indian tribes have also established
water rights through the courts based on their
traditional diversion and use of certain waters prior to
the United States’ acquisition of sovereignty.
说明在不满足的条件下，也可以然后bla bla解释了一通
题目问的是if  the criteria discussed in lines 10-20 were the only criteria for establishing a reservation's water rights,which of the following would be true?
那么后面的这个情况就不存在了
答案就是There would be no legal basis for the water rights of the Rio Grande pueblos.