What is NOT one of the ways in which people get their news?
A.Readers get their news by reading evening newspapers.
B.Many Americans read their daily newspaper while drinking coffee.
C.While driving to work, people have a glance at their newspaper.
D.Many Americans watch their morning news program on television.
第3题
A.2:1
B.1:1
C.1:3
D.3:1
第4题
A.2:1
B.1:1
C.1:3
D.3:1
第5题
计算题:已知某硫回收装置每小时进酸气2000Nm3/h,酸气中含硫化氢50%,甲烷2%,乙烷0.5%,若采用部分燃烧法,求配风比。(空气中氧含量为20%,百分比都为体积百分比)
第8题
计算题:某脱硫厂回收装置进酸气量为2079m3/h,空气配风量为5295m3/h,酸气和尾气的化学组成(体积分数)如表所示,用硫碳比计算该装置硫化氢的总转化率。
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