tongxun

1 Although New Jersey is called Gargen States, over three quarters of its area is used for non-agriculture purposes, which leaves only a small portion of land available for cultivation.
我认为上面这个句子是有问题的, which应指代purpose, 这样意思上讲不通,但Princetion说是正确的答案.问题在那里,我理解有误吗?
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我同意你的看法。应该用leaving比较好。