A:Lastly, the dog stopped barking and then went to sleep.
B:Finally, the dog stopped shouting and then went to sleep.
C:Finally, the dog stopped barking and then went to sleep.
“sinα=cosα”是“cos2α=0”的( )
—Not yet!It will be done in a few minutes.
下列对不同动物的结构与生活环境相适应的叙述,错误的是( )
90平方厘米=____平方米