将抛物线y=x2平移得到抛物线y=x2+5,下列叙述正确的是( )
将下面的短文抄写在三线格中,注意大小写及标点符号。
his name is Tony smith. He's from cambridge. In his class, Tony and Lingling are thirteen years old and daming is twelve years old. they are good friends.