新泰青云福田学校,雌蜂和雄蜂生活在同一巢中,但在形态、和劳动分工方面均有区别。雌性个大,负责繁殖后代,雄峰专司交配,交配后即死亡;工蜂个体较小,是发育不全的雌蜂,专司筑巢、采集食料、哺育幼虫、清理巢室和调节巢湿等。,我这样算:50+20=707+9=1670+16=86,我这样算:57+20=7777+9=86,86,77,我这样算:57-20=3737-9=28,我这样算:57-30=2727+1=28,28,13,38,63,80,93,62,91,60,87,34 + 27 = (页),21 + 29 = (页),61,50,51,53,15,24,42,27,25,68,33,40 - 15 = (个),25,45,26,1700,800,8000,5000,2000 - 300= 1700(米),2000 +300=2300 (米),你有什么收获?,