一位俄罗斯商人来参加广州商品交易会，他最可能采购的商品是

    It was Children's Day yesterday, we 1the park. Our teacher was 2us.

    3 many people there. Some Young Pioneers (少先队员)4 near the river.

    5 sang and danced. There were some6 on the river. There was a hill

    7. Some boys8 in the river. We sat under 9 apple tree with our teacher. We 10on Children's Day yesterday.

俗话说：“给人玫瑰花，手上常有一缕芳香，帮助别人，就是快乐自己；为他人开一朵花，就是提高自己的生命质量。”下列做法，能体现这一点的有（    ）

①心中有他人

②理解他人的感受，设身处地为他人着想

③换位思考，与人为善

④说话做事，只顾自己，不顾别人

“人间四月芳菲尽，山寺桃花始盛开”，造成这一差异的主要环境因素是…（　　）