Where are they?

    This is Tommy's bedroom(卧室). You can see a small bed 1the room. There's a toy(玩具)on the bed. You can see a light（灯）on the drawer. 2the photo? It's on the drawer，too. You can see 3on the chair. Where are the plants? They are4. The alarm clock, the pen and a cup 5on the table. 6you see a math book? Yes, it's on the floor. 

生活在两宋之交，其词具有：“风格委婉，感情真挚，善用口语，清新自然”特点的是（    ）

纳米陶瓷作为高新科技材料应用广泛．采用氧化锆材料精制而成的纳米陶瓷刀，刀刃锋利，能划开钢铁，割断玻璃等物质．其体现的物质特性主要是（　　）

若关于x的一元二次方程x²﹣2x+kb+1=0有两个不相等的实数根，则一次函数y=kx+b的大致图象可能是（  ）