写出下列词语的反义词。
寒冷-____ 融化-____ 点燃-____
某电池对纯电阻供电的输出功率P随电流I变化的图像如图所示.则下列说法正确的是( )
— What are you going to do this Saturday?
— There _______ an English party in our school. I'm going to take part in it.
如图为航母上简化的蒸汽弹射装置,能带动舰载机在两秒钟内达到起飞速度。