1. (单选题) 设 I1=∬Dsin|x−y2|dx dy,I2=∬Dsin(x−y2)2 dx dy,I3=∬Dsin(x−y2)3 dx dy, 其中 D= {(x,y)∣(x−1)2+(y−1)2⩽2}, 则 A、I1<I2<I3B、I2<I3<I1C、I3<I1<I2D、I3<I2<I1