***主席在2016年新年贺词中说：“世界那么大，问题那么多，国际社会期待听到中国声音、看到中国方案，中国不能缺席。”下列正确体现中国声音和方案的是（  ）

①运用亚太经合组织平台，推进合作共赢，让中国主导全球性增长

②加强安全领域合作，共同打击恐怖主义，维护各国人民生命安全

③应对气候变化，大力推进生态文明建设，推动绿色循环低碳发展

④探索总结脱贫经验，通过对外援助，直接帮助世界完成减贫目标

两个同学共同通过一根绳子水平拉重100N的物体，使其向右滑动，如图所示，F₁=200N，F₂=300N，则物体受到的合力为（　　）

    My mother is very nice. She is a ____ （work） in a clothes store. She usually gets up at 6: 30. Then she cooks breakfast for me. After ____（have） a bowl of porridge and some broccoli, she goes to work at 7: 30. There ____ （be）usually many people in her clothes store. So she is very busy.

    My mother's work in the morning is over at 11: 45, and starts again at 1: 30 in the afternoon. So she has to have lunch in the store. Her work in the afternoon ____ (end) at 5: 30, and she goes home at 6: 30. Then she has dinner with ____ (we）at home. After dinner we watch TV together.