I like tomato noodles, but my sister likes noodles _________ chicken.
“五十六个民族,五十六枝花,五十六个兄弟姐妹是一家……” 我国人口最多和最少的少数民族是( )
(6分)先化简再求值:2(x2y+xy)﹣3(x2y﹣xy)﹣4x2y,其中x=﹣1,y=2.