题目

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。Kids always have to sit in the back seat these days for security reasons.This would have taken a lot of joy away from my childhood. How many 【1】 (time) did my brother and I fight over who got to sit in the front? I'm 【2】 (surprise) my mom never implemented (执行) a policy 【3】 (real). She kind of let it up to us. Once in a while, she would put her foot down and make us take turns. I recall that at times, the front seat would go to whoever 【4】 (yell) “I call the front!” first. But 如图甲所示，是李辉“探究物质熔化规律”的实验装置，图乙是依据实验数据描绘出的该物质温度随时间变化的图象．（1）实验中使用的温度计是根据 的原理制成的；（2）由图乙可知，该物质是 （选填“晶体”或“非晶体”；（3）该物质在BC段处于 （选填“固体”、“液体”或“固液共存”）状态．此过程中吸收热量，温度不变，内能