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. ____
已知:
① (R=﹣CH3或﹣H)
② →Fe/HCl
③ →KMnO4/H+
回答下列问题:
函数f(x)=Asin(ωx+φ)(A>0,ω>0,|φ| <π2 )的部分图像如图所示,则函数y=f(x)对应的解析式为____