问题 单项选择题

某电力公司由于建造了高效率的发电厂,同时又减少了每度电的收费,大大刺激了该厂电力覆盖地区的用电量,创造了巨额利润。为了创造更高的效益,这个公司计划扩建3倍发电量的新厂以取代旧厂。
该公司的上述计划假设了以下诸项,除了:

A.该厂电力覆盖地区的用电需求量将有增长。

B.扩建的花费不会超出扩建后规模效益和效率效益带来的补偿。

C.3倍的发电量将不会导致难以克服的技术障碍。

D.新厂房的安全设施的标准必须和旧厂房保持不变。

答案

参考答案:D

解析: 选项A是该电力公司扩建计划所必须假设的,因为如果该电厂电力覆盖的地区的用电需求不增长,那么该公司的扩建计划就会由于没有市场需求而失去必要性,项目建成后带给公司不仅不是经济效益,而且会成为该公司巨大的负担;选项B是必须假设的,因为扩建是一项投资计划,当然必须考虑回报和补偿问题;选项C是必须假设的,如果扩建计划遇到难以克服的技术障碍,那么这个计划就是不可行的;唯有选项D不是该电力公司扩建计划所必须假设的,因为新厂房的安全设施的标准完全可以和旧厂房的不同,可以比旧厂房的安全标准更高,更完善。

阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

I live in Japan, where electronic items are a way of life, so it is no surprise that many students carry these little electronic dictionaries. E-dictionaries may be lighter and compacter (简洁的) than any paper dictionary.  小题1:  However, to me, these are pretty much the limits to their advantages.

I think e-dictionaries should be limited in their use in classrooms. 小题2:

E-dictionaries are much more expensive. In Japan, they cost as little as 10,000 yen(US$100)much as 40,000 yen, depending on how many functions you want (or think you want) and depending on how fashionable you are. My trusty Random House paper dictionary is copyrighted at1995, cost me a mere US$12.95 plus tax.

E-dictionaries are more fragile. Drop your paper dictionary. Go ahead. Hold it above your head and drop it. 小题3:

E-dictionaries need batteries. Batteries are temperature sensitive. Batteries cost money, too.

E-dictionaries have keypads. Typing in the spelling of a word is harder and more time consuming than looking through pages and using the index at the top of each page.

小题4: Sound . Little devices beep (嘟嘟声) when you press the buttons, but it is very disturbing to some people in a classroom situation or library.

Finally, let’s consider making corrections or additions. No dictionary is perfect, paper version or electronic. However, when you find something you’d like to change in the e-dictionary, you can’t do anything about it. You can pencil in some notes with the paper type. Similarly, if you learn a word that isn’t in the dictionary, a few notes of a pencil make it easy to increase its memory capacity.  小题5:And, for those students whose habit is to mark certain words with a highlight pen for ease of future reference, again, the paper dictionary wins out.

A.But it is impossible to do so with a keypad model.

B.They may even contain more words and expressions.

C. Let me add a statement about one that really troubles me.

D.Now, try this with any lightweight plastic e-dictionary, and you’ll be picking up the pieces.E.That huge, heavy paper dictionary that you see in your library looks like a building block in size and weight.

F.E-dictionaries have advantages as well as disadvantages.

G.Let’s take a look at the following reasons.

填空题