问题
选择题
The balance of nature is _____ at times, resulting in a number of possibly unforeseen effects. |
A. confused B. troubled C. disturbed D. harmed |
答案
答案:C
The balance of nature is _____ at times, resulting in a number of possibly unforeseen effects. |
A. confused B. troubled C. disturbed D. harmed |
答案:C