试述我国《土地管理法》设立的耕地保护制度。
参考答案：
如图是“黄河流城图”，图中水土流失最严重的地区是（ ）
A．甲
B．乙
C．丙
D．丁
Every student and every teacher ______.
A．are going to attend the meeting
B．has attended the meeting
C．have attended the meeting
D．is attended the meeting
