单项选择题

A．Human and wildlife health risks are being reduced.
B．The ecological system will be restored in the near future.
C．Significant near -term improvement in water quality has been made.
D．Pollution enters and moves through the Great Lakes region.
<上一题 目录 下一题>
热门 试题

单项选择题
A．Mike and Mary are going to see the movie tonight.B．Mary is inviting Mike to see the movie Star Wars .C．The movie has been shown for about a month.D．The movie will be shown for the first tim
A．Mike and Mary are going to see the movie tonight.
B．Mary is inviting Mike to see the movie "Star Wars".
C．The movie has been shown for about a month.
D．The movie will be shown for the first tim
单项选择题
A．It’s located in the Northeast of the ＵＳＡ.B．It’s located in the Northwest of the ＵＳＡ.C．It borders on Mexico.D．It borders on Canad
A．It’s located in the Northeast of the ＵＳＡ.
B．It’s located in the Northwest of the ＵＳＡ.
C．It borders on Mexico.
D．It borders on Canad
相关试题