【简答题】下面是高炉炼铁及工业炼钢的工艺示意图 根据示意图回答下列问题: (1)炼铁的原料I为固体混合物,其中除铁矿石、焦炭外,还有__________,原料Ⅱ为______________。 (2)高炉气是炼铁过程中的尾气,该气体对环境有害,而现代工业提倡节能降耗,所以可以从高炉气中提取回收_____________用作燃气。 (3)写出炼铁高炉中的氧化还原反应的化学方程式:_______________...
【判断题】TPO: T时间(time),P人物(people),O场合(occasion)。()
【单选题】In spite of the women’s liberation movement, people are still not yet completely free ______ p rejudice ______ women.
【单选题】All qualified mechanics are people familiar with hydraulics. No unschooled people are people familiar with hydraulics. No qualified mechanics are unschooled people.
D.
breaks more than one rule