阅读下列材料:
材料一:江南地广或火耕水(烧荒和耕种水稻)。民食鱼稻,以渔猎山伐(采集)为业。……饮食还给(食物供给有保障),不忧冻饿,亦亡千金之家(没有非常富有的人家)。——《汉书》
材料二:江南……地广野丰(物产丰富),民勤本业,一岁或稔(丰收),则数郡(几个郡)忘饥。……丝绵布帛之饶,覆衣天下。——《宋书》
请回答:
A
Linda,14
My mother does most of the housework like cooking and folding the clothes.My father can only do the washing,sweep the floor and take out the rubbish.He really needs to learn how to do the housework.
Celina,13
My mother and my father do 50% of the housework each.My mother does the washing and cleans the living room.My father makes the bed and drives me to school.
Paul,16
My father doesn't do a lot but he tries to help.He hangs__up the clothes after my mother washes them and my mother is happy that he always gives her a hand.
Bill,15
My mother is a doctor.She is busy with her work every day,so she has little time to do the housework.In fact,she isn't good at doing it.So my father has to do most of it.Sometimes my grandmother comes to help.
如图,△ABC中BD、CD平分∠ABC、∠ACB,过D作直线平行于BC,交AB、AC于E、F,AB=5,AC=7,BC=8,△AEF的周长为( )
某同学在探究“电流跟电压、电阻的关系”时,根据收集到的数据画出了如图9所示的一个图像相符的是 ()