题目内容
11、_______ environmental damage is done, it takes many years for the ecosystem (生态系统) to recover.
A. Even if B. If only C. While D. Once
试题答案
11、D
B. If only
C. While
D. Once
_______ environmental damage is done, it takes many years for the ecosystem (生态系统) to recover.
A. Even if B. If only C. While D. Once
查看习题详情和答案>>________ environmental damage is done, it takes many years for the ecosystem(生态系统)to recover．
A．Even if
B．If only
C．While
D．Once
________ environmental damage is done, it takes many years for the ecosystem(生态系统)to recover．
A．Even if
B．If only
C．While
D．Once
________ environmental damage is done, it takes many years for the ecosystem(生态系统)to recover．
A．Even if
B．If only
C．While
D．Once
________ environmental damage is done, it takes many years for the ecosystem(生态系统)to recover．
A．Even if
B．If only
C．While
D．Once
________ environmental damage is done, it takes many years for the ecosystem(生态系统)to recover．
Even if
If only
While
Once
________ environmental damage is done, it takes many years for the ecosystem(生态系统)to recover．
Even if
If only
While
Once