“爱心一面墙，温暖一座城”，是荷泽市电视台倡议发起的一项社会公益活动，旨在传递社会正能量，温暖生活困难群体。2016年2月6日，荷泽市第一面“爱心墙”在育才路建成，短短几天时间，“爱心墙”上挂满了周边市民自发送来的各种衣物，这些衣物又陆续被需要的人们取走。“爱心墙”受到过往市民的广泛热议和赞扬，被称为“荷泽最美的风景”。请你运用所学知识，回答：

Ⅰ具有同源染色体的细胞有①②③；

Ⅱ动物卵巢中可能同时出现以上细胞；

Ⅲ③所示的细胞中有2个四分体；

Ⅳ进行有丝分裂的细胞为①和③

    Most Chinese eat three meals a day. In the past,they had breakfast in the morning, a big lunch at noon, and a light supper at night.

    But now both men and women in the big cities have to work on the weekdays. So they often eat bread, eggs, milk and porridge forbreakfast at home. For lunch, Chinese take-away food is very popular. They often have a quick lunch in their workplaces.

    After work in the afternoon, they have more time for supper. They usually eat a big meal at home. Wives often cook meat, fish, chicken, vegetables and rice for their family.You can also find dumplings and noodles on the table in most families of northern(北方的)China.

澳大利亚出口的矿产主要是____。