A:-2,5
B:-5,-2
C:-5,2
D:2,-5
下列图形中,既是轴对称图形又是中心对称图形的是( )
在非洲大草原,大型肉食动物特别多,羚羊等弱小动物的奔跑速度都比较快.用达尔文进化论可解释为( )
The husband appreciates that his wife always avoids________him in front of his friends.