热媒炉部分炉子灭火，重新点火后要逐渐提高热媒炉负荷。（）
参考答案：对
My grandfather is a fat old man _____ a long white beard. [ ]
A. has
B. have
C. with
D. wear
红外线轴温探测系统出现哪些故障时列检应进行轴温触手检查？
