My name is Tom. I come from England. I like to have friends who are different from me. My best friend is Paul. Paul is funnier, more outgoing and athletic than me. He always tells jokes and makes me laugh. We also like different things. He likes going to the movies. He likes playing sports. He likes pop music. But I like reading books. He often asks me to go to the movies and gives me some interesting books. And I often give him CDs. We often help each other.

质点做直线运动的v﹣t图象如图所示，规定向右为正方向，则该质点在前8s内平均速度的大小和方向分别为（   ）

电视剧《我的团长我的团》的剧中有这样一个场景：为鼓舞溃兵伤兵的士气，军方播报了关于不久前一个战役的一段报道：“……倭军之三十三师团使用迂回穿插之战术，以两个联队兵力攻占拼墙河（河流名）南北，而我远征之军以寡击众，披肝沥胆，做浴血之战，解救同盟之英吉利军七千余众，夺回中外记者教士五百余众……”上述材料说明了（    ）

经典长篇小说《平凡的世界》中主人公一句“命运总是不如人愿，但往往是在无数的痛苦中，在重复的矛盾和艰辛中，才使人成熟起来”值得读者细细品味，从中我们可以领悟到（    ）

①人生难免会经历挫折                                     ②人们正是在克服困难、战胜挫折的过程中取得成功与进步的

③挫折是人生成长的财富，总能催人奋进     ④同样是挫折，对不同的人会产生不同的影响