集体是一个整体，其存在形式多种多样，集体的基本特征有
①有着共同的目标 ②行动上相互支持 ③心理上相互依存 ④情感上荣辱与共

日内瓦会议后，***就外交问题指出：“关门关不住，不能关，而且必须走出去。”这里，“必须走出去”的战略意义在于  

下列地理现象不是由地球公转产生的是（　　）

I have two friends. They are Bob and his sister Amy. Look! Bob

has a white T-shirt. He is not tall but fat. He is 10 years old.He

can ride a bike. Amy is the girl. She has a red skirt. She likes red

very much. She can fly a kite. She is 9 years old.

Oh! Look! The boy is me. I have a big mouth and long hair. I am

10 years old. I like swimming. I can swim very well. The little dog

is my friend, too. He can run and jump. He has big ears and a big

mouth. He is cute (可爱). I love him.