You're supposed ______ your room up before you go out.
A:to clean
B:clean
C:cleaning
She be here.I saw her come in.
荔枝与香蕉、菠萝、龙眼一同号称“南国四大果品”.荔枝因杨贵妃喜食而闻名,使得杜牧写下“一骑红尘妃子笑,无人知是荔枝来”的千古名句.荔枝的种子中﹣﹣﹣﹣是新植物的幼体.( )
设平面点集A={(x,y)|(x﹣1)2+(y﹣1)2≤1},B={(x,y)|(x+1)2+(y+1)2≤1},C={(x,y)|y﹣1x≥0},则(A∪B)∩C所表示的平面图形的面积是____