读图，完成下题．
阅读下面短文，在空白处填入一个适当的单词，或填入括号中所给单词的正确形式。
Hello! My name is Bill. There is ____ library in our school. The library is not big, ____ it is nice. About 6,000 books ____ (be) in it. I like books very much. I go to the library every day. Miss Yang works ____ the library. She always helps ____ (we) find the books.
某人骑自行车在平直道路上行进，图中的实线记录了自行车开始一段时间内v﹣t图象，某同学为了简化计算，用虚线作近似处理，下列说法正确的是（ ）
①第一颗原子弹爆炸成功②第一颗人造地球卫星发射成功③袁隆平培育出“籼型杂交水稻”④成功发射第一艘无人飞船——“神舟一号”
