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阅读以下文字,完成91-95题。 目前,我国“煤变石油”的产业化进程正在有序进行之中。也许有人会问,煤和石油,一个是黑乎乎的固体,一个是油亮亮的液体,两者从[ 1 ]上看似乎并无相同之处,为什么要将煤转化为石油?转化又是怎样实现的? 随着我国经济的快速发展,国内能源消费需求量越来越大。由于我国对石油进口的依存度较大,所以国际油价上涨、中东政局变化等因素,对我国石油能源安全构成潜在危险。同时由于石油具有流动性好,便于开采、输送和使用的特点,近年来国内石油消费量的增幅大大超过了石油产量的增幅。而煤作为能源,与石油同属化石能源,只是由于古植物和地质条件的不同,最后的生成才与石油大不相同。从现有数据看,煤在我国的可开采量及供应年限远远大于石油。于是有人考虑将煤转化为石油,以满足国内市场对石油的需求。虽然“煤变石油”需要有足够的投入,但是从经济效益来看,这种考虑还是可行的。基于这样一些认识,人们开始研究各种转化方式,间接液化技术就是其中较为有效的方法之一。 煤的间接液化过程可以分三。第一步制取原料气。把经过适当处理的煤送入反应器,在一定温度和压力下通过气化剂使煤不完全燃烧,这样就能以一定的流动方式将煤转化成一氧化碳和氢气混合的原料气,灰分形成残渣排出。第二催化反应。将制取的原料气净化,在催化剂作用下,让其发生化合反应,合成类似石油的碳氢化合物。在这个过程中,催化剂起着关键的作用。早些时候,国外有一家公司曾经研制出一种成分为铁、硅、钾、铜的产效比较高的催化剂,其所得化合物的组成为:汽油32%、柴油21%、石蜡烃47%。第三催化反应的产物进行进一步的提质加工。就如刚开采出来的石油一样,经过催化反应出来的油也有很多 [ 2 ]不合格,如十六烷值含量、硫含量、水分以及粘度、酸度等,所以还需要对它进行处理,使它达到合格标准,满足市场需要。目前,我国的这种“煤变石油”技术达到了国际先进水平,大约每四吨煤可产出一吨油。 下列关于我国“煤变石油”工程实施原因的表述,不正确的一项是( ) 。
A.
我国石油消费依赖进口,需求量不断增大,导致石油能源供给出现危机
B.
煤与石油一样,都属于化石能源,但在我国煤的储量要比石油丰富得多
C.
尽管成本相对比较高,但是从经济效益的角度看,煤变石油还是可行的
D.
“间接液化”等技术的出现,为实现“煤变石油”的目标提供了技术保证
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举一反三
【单选题】Why do some publishers no longer promote their books?
A.
Because the paper books are not profitable enough to sustain promotion.
B.
Because Amazon's near monopoly over the industry makes promotion unnecessary.
C.
Because the public have easy access to the books' sales and reviews.
D.
Because all the writers are promoting the books on their own.
【单选题】What critics are really worried about?
A.
Broadcasters and publishers do not want to make open bad news about their advertisers.
B.
Stations are too much interested in seeking money from their advertisers.
C.
Programs are not so appealing to more and more audience.
D.
Stations will not broadcast enough educational programs.
【单选题】传染病区内属于半污染区的是
A.
病室内所
B.
浴室、处置室
C.
病区内走廊
D.
库房、值班室
E.
更衣室、配餐室
【简答题】声道分为:
【单选题】What do publishers have to do if they want their digital products to be successful according to Murphy?
A.
They have to make the prices lower.
B.
They have to provide more kinds of products.
C.
They have to advertise their products.
D.
They have to design the user experience to be  as interactive as possible.
【单选题】What are editors and publishers doing to attract non-readers?
A.
Lowering the prices of their newspapers.
B.
Shortening their news stories.
C.
Adding variety to their newspaper content.
D.
Including more advertisements in their newspapers.
【单选题】传染病区内属于半污染区的是
A.
库房
B.
病区内走廊
C.
值班室
D.
病室
E.
病区外走廊
【单选题】What is the controversial point between the publishers and the technology companies?
A.
The publishers hope they can offer books of top quality.
B.
The publishers hope they can respect copyright of original books.
C.
The publishers hope they can provide the comments.
D.
The publishers hope they can digitize as many books as possible.
【单选题】Under the new law, what must publishers do?
A.
Offer cheaper DVDs and workbooks
B.
Sell books individually
C.
Provide discounts to professors
D.
Communicate with parents
【单选题】传染病区内属于半污染区的是
A.
病室内厕所
B.
浴室,处置室
C.
病区的内走廊
D.
库房,值班室
E.
更衣室,配餐室
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