The heavy rain leads to this flood. We should think out an idea to stop it.
A:avoids
B:causes
C:fills
Which of the following “ed” has a different pronunciation(发音) from the other three?
人类改变水循环时间分布不均的办法是( )
图中是中国局部区域示意图, 读图回答问题。
甲、乙两同学骑自行车从A地沿同一条路到B地,已知乙比甲先出发,他们离出发地的距离s(km)和骑行时间t(h)之间的函数关系如图所示,给出下列说法:
(1)他们都骑行了20km; (2)乙在途中停留了0.5h;(3)甲、乙两人同时到达目的地;(4)相遇后,甲的速度小于乙的速度.根据图象信息,以上说法正确的有( ).