注意：此页面搜索的是所有试题
题目内容
（兰州工业学院大学英语3）
Unless we can find a way to ________ nature and then invest in protecting it, our basic life-support systems are going to collapse.
A、appreciate
B、appraise
C、account
D、approximate
A、appreciate
B、appraise
C、account
D、approximate
参考答案
