____ P+____O₂ $\frac{\underset{\_}{点燃}}{}$ ____P₂O₅

____ Fe₂O₃+____C $\frac{\underset{\_}{高温}}{}$ ____Fe+____CO₂

____ Fe₂O₃+____CO $\frac{\underset{\_}{高温}}{}$ ____Fe+____CO₂．

函数y=（2x﹣1）²+2的顶点坐标为____ 

如图是甲、乙两种固态物质在加热过程中温度随着时间变化关系的图像，由图像可以判断出（  ）

根据短文内容，判断正确还是错误。

     Lynn has many books and toys. She has English books, Chinese books, word books and comic books. The English books and word books are thick. The Chinese books and comic books ard thin. She likes reading English books and word books. She has a boy bear, a toy dog and a toy cat. Her toy bear is hard. Her toy dog and toy cat are soft. She likes them very much.