闪点＜（）的液体属于甲类火灾危险性物质。
A、28℃
B、30℃
C、35℃
参考答案：A
An important factor in a market-oriented economy is the mechanism of which consumer demands can be expressed and responded to by producers.
机车乘务员在运行途中应注意哪些安全事项？
