如图①,在△ABC中,∠ACB=90°,BC=2,∠A=30°,点E,F分别是线段BC,AC的中点,连接EF.
如图,抛物线的对称轴是直线x=2,顶点A的纵坐标为1,点B(4,0)在此抛物线上.
下列词语书写有误的一项是( )
阅读短文, 判断句子对错。
I am 8 years old. I have 2 pencils. I have 4 rulers. I have a friend. Amy is 9 years old. She has 9 pencils and a ruler.
I'm eight years old.____
I have 2 friends.____
I have five rulers.____
Amy has nine pencils.____
Amy is nine. ____