①利用太空育种新技术可以创造新的物质的具体形态
②太空育种作为人为事物的主观联系具有“人化”的特点
③发挥主观能动性改变规律发生作用的条件可以造福人类
④认识的局限性意味着人类永远处于接近真理的路上
A:①②
B:①③
C:②④
D:③④
I think Christmas (圣诞节) is one of the happiest times of the year. Everyone has a smile on their face. It's such a(n) ____for kids. They can't wait to open their gifts and play with their____. It's a nice time for their parents too. They can ____with their family and relax. Let's not forget the true meaning of Christmas. It is not about ____ Christmas trees or the snowman. It's all about love for each other and ____around the world.
中国是一个统一的多民族国家。“五十六个民族,五十六枝花”,每个民族都为中华文明做出了自己的贡献。历史上各民族之间既有刀光剑影,也有“和同为一家”的佳话。