煤加热至一定温度时,煤中的部分有机物和()逸出的气体称为挥发份。
参考答案:矿物质发生分解
You are _to type quickly when talking to each other on QQ so the other person doesn't get bored.
A.suggested
B.supported
C.taught
D.supposed
PANELVIEW 1400E的组态软件画面中按下某一阀开关手动按钮或11-LCP2启、停炉手动按钮后,按钮颜色变为绿色并保持绿色不变,此时阀或加热装置()
A、打开
B、不动作
C、开始动作
D、关闭