填空题

Unlike Muir, Pinchot was much more concerned with the use of natural resources to ______.

【参考答案】

serve human needs
<上一题 目录 下一题>
热门 试题

填空题
Environmental awareness had become much more commonplace by ______.
填空题
The first book to demonstrate harmful human activity to Earth was written by ______.
相关试题