问答题

某高耗能工业项目生产X产品,生产过程有A、B、C三个环节,设计生产规模是30万t/年。在达产年份,生产过程各环节的能源消耗见表3。

问题:
1.计算该项目单位产品的能耗指标(千克标煤/t)。
2.假定该国内生产X产品的先进能耗水平是420千克标煤/t,平均能耗水平是445千克标煤/t,评价该项目的能耗水平。
3.根据上述计算结果,从节能降耗的角度,对该项目的建设方案,应加强哪些方面的研究?
注:计算过程和结果数值均保留整数。
附各类能源热值:
1千克标煤热值=7 000千卡
1千克原煤热值=5 000千卡
1千克柴油热值=10 500千卡
1度电=2 800千卡(按火力发电煤耗计算)

A.shangxueba.cn/images/ct_jgztzjcz2008_jgztzjccompute_00053(20091)1.jpg'
B.计算该项目单位产品的能耗指标(千克标煤/t)。
2.假定该国内生产X产品的先进能耗水平是420千克标煤/t,平均能耗水平是445千克标煤/t,评价该项目的能耗水平。
3.根据上述计算结果,从节能降耗的角度,对该项目的建设方案,应加强哪些方面的研究?
注:计算过程和结果数值均保留整数。
附各类能源热值:
1千克标煤热值=7
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【案例分析题】

During the traditional wedding ceremony, the
CD#6bridal couple promises each other lifelong 【M1】______
devotion. Yet, about one out of four American
marriages ends in divorce. Since 1940, the
divorce rate has more than doubled, and
experts predict that, of all marriages that
occured in the 1970s, about【M10】% will end in 【M2】______
divorce. The USA is one of the highest divorce 【M3】______
rates in the world, perhaps even the highest.
What goes wrong? That fact that divorce is so
common in the United States does not mean that
Americans consider marriage a casual, unimportant
relationship. Just opposite is true. Americans 【M4】______
expect a great deal from marriage. They seek physical
, emotional, and intellectual compatibility.
They want to be loved deep and understood. It 【M5】______
is because Americans expect so much from
marriage that so many get divorce. They prefer 【M6】______
no marriage at all to a marriage without love
and understanding. Which typical American
optimist, they end one marriage in the 【M7】______
hope of that the next will be happier. With 【M8】______
no fault divorce laws in many states, it is
easier than never to get a divorce. Some American 【M9】______
women stay in unhappy marriages because they
do not have the education or job experience
to support themselves and their children.
But most American women believe that, ff necessary,
they can make it lonely without a 【M10】______
husband. All things considered, Americans
have little reason to continue an unhappy
marriage.

【M1】()

答案: promises改成promise
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