解:由题意得,x+2=0,y﹣3=0,
解得,x=﹣2,y=3,
则(x+y)2016=1.
It's eight o'clock. The people in Moscow having afternoon tea.
某生物体细胞内含有4对同源染色体,其中a,b,c,d来自父方,A,B,C,D来自母方,经减数分裂产生的配子中,同时含有四个母方染色体的可能性是( )