I'm Giant.My____(head/hand)is big.
My hair is____(short/long).My eyes are small.
函数y=sin(πx+φ)(φ>0)的部分图象如图所示,设P是图像的最高点,A,B是图像与x轴的交点,记∠APB=θ,则sin2θ的值是( )