以下哪些情况表明设备运行异常（）
A.设备面板有红灯闪烁
B.设备风扇不运转
C.设备电源出现电火花
D.设备线缆出现松动
参考答案：A, B, C, D
0.82里面有______个百分之一，3个0.01是______．
The leaves of evergreens can survive the winter because they are ______and fluid inside their cells contains cold-resisting substances.
