问题描述：
The employment rate has continued to rise in big cities thanks to the efforts of the local
governments to increase___.A.that B.it
为什么选it?that不也可以指代之前提到过的东西吗?两者有什么区别?
governments to increase___.A.that B.it
为什么选it?that不也可以指代之前提到过的东西吗?两者有什么区别?
问题解答：
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