预热的加热方法主要有火焰加热法、工频感应加热法和远红外线加热法等。( )
参考答案：对
—I have learned English so long. But I can't follow the Australian.
—Because English is spoken ______ in different countries. [ ]
A. different
B. differently
C. widely
D. slowly
炒菜油锅着火时，不可以采取哪种措施：（）
A、盖上锅盖
B、立即浇水
C、将切好的蔬菜倒入锅内
