2015年3月20日，中韩双方对68具中国人民志愿军遗骸进行交接，使这些在朝鲜半岛沉睡了超过半个世纪的烈士得以“荣归故里”．当年，志愿军战士抗美援朝，保家卫国，被誉为（    ）

提出“宇宙是无限的”科学家是（　　）

扩句。（至少扩两处）

①柳枝舒展着腰身。

②我想起刘老师。

③风筝翱翔。

    There are two main kinds of sports. These two kinds of sports are team sports and individual(个人的) sports. Team sports are such sports as baseball，basketball and volleyball. Team sports need two separate(独立的) teams. The teams play against each other. They compete(竞争) against each other in order to get the best score. For example, in a football game, if Team A gets 7 points and Team B gets 3 points，Team A wins the game. Team sports are sometimes called competitive(竞争性的) sports.

    Besides team sports, there is another main type of sporting activity. It's individual sports. In individual sports there are no teams. People play individual sports such as swimming, skiing and running.

    Of course, it is possible(可能) to compete in individual sports. It is possible to keep a score in individual sports. The main difference, however, between team sports and individual sports is that team sports always require(要求) more than one person.

各种交通运输方式中，主要承担其它运输方式之间周转和联系的是（　　）