考前必看:2021年考研英语工学类阅读理解模拟题及答案(二十八)
发布时间:2020-10-12
目前,2021年考研初试备考时间已不足三个月,不知各位小伙伴复习的如何了?在最后阶段,我们最需要做的是了解考试,而试题练习无疑是非常不错的方法。为了帮助大家备考,51题库考试学习网在下面为大家带来考研初试的一些模拟试题,一起练起来吧。
In a ditty for the stage, W.S. Gilbert once gave warning that “Things are seldom what they seem/Skim
milk masquerades as cream.” If
appearances were tricky in 1878, they
have just become trickier still. By doubling the resolution of existing
liquid-crystal displays (LCDS), IBM
has created a monitor which, when
viewed from 18 inches away or farther, shows images that the human eye finds indistinguishable from the
real thing.
The T220, as it is called, measures 22 inches across the diagonal, and displays 9.2m picture elements (“pixels”)。 That gives it a resolution of 200 pixels
per inch, twice the previous
state of the art. This achievement has come as a result of gradual improvements
in optics, liquid-crystal
chemistry and microelectronics made by IBM groups in Yamato, Japan, and Yorktown Heights, New
York.
LCDs work by sandwiching a thin sheet of
liquid crystals-in this case, thin-film transistors-between two narrowly separated panes of glass. Typically, small glass spheres have held the two
panes of glass apart, impairing by refraction the performance of the display. IBM has replaced the
spheres with small posts, which
are located in the interstices between pixels, and so do not disturb the light as it leaves the excited liquid
crystal. In the past, attempts to achieve such high pixel rates have been stymied by the build-up of
electrical static, which caused
problems with the brightness of the screens. The IBM groups have solved this by
using a laser to scan back and forth across the glass, preventing the build up of static
electricity.
At a current retail price of $22,000, the T220 is hardly going to be flying off the shelves. But it will
be ideal for hospitals. Historically, radiology has been a driving force behind the development of
high-resolution screens. And the T220\'s price tag will go almost unnoticed when
attached to MRI (magnetic resonance imaging) or CT (computerised tomography)
scanning machines. Until now, no
monitor has been able to display the 5m pixels of data that a typical
CT-scanning machine produces. The ability to reproduce the data with perfect
fidelity should help radiologists make more accurate diagnoses from the
computer screen.
According to Bob Artemenko, director of marketing and strategy for IBM\'S
business display unit, the
new screen could also help petroleum engineers to speed up their analysis of
where to drill from one month to one day. Similarly, the higher fidelity will allow CAD
(computer-aided design) systems, especially in the motor and aerospace industries, to work faster-because the detail revealed by the new monitor can
cut out costly prototype-building exercises. RAM\'S idea is that the new monitor
will allow designers of all sorts to go straight from computer image to final
product, eliminating many
costly and time-consuming middle stages.
With prices of more conventional 15 inch
LCDs now below $500, IBM is
expected to shift its engineering effort from achieving high resolution to
lowering costs. How long before the T22o starts showing up in high-end laptops?
Judging from previous experience, it
could happen sooner than most people think
注(1):本文选自Economist; 9/22/2001, p7, 2p, 1c;
注(2):本文习题命题模仿对象2004年Text 1;
1. How does the author introduce the topic?
[A]Posing a contrast.
[B]Justifying an assumption.
[C]Making a comparison.
[D]Explaining a phenomenon.
2. Which of the following is not the
advantage of the T220?
[A]Reasonable price.
[B]Time-saving.
[C]Cost-saving.
[D]High fidelity.
3. The expression “stymied”(Line 6, Paragraph 3) most probably means _____________.
[A]limited
[B]controlled
[C]improved
[D]hindered
4. Why does the hospital ignore the price
tag of T220?
[A]T220 creates a driving force for the
medical staff.
[B]T220 guarantees a more accurate
diagnosis.
[C]CT-scanning machine fails to produce
such high fidelity images.
[D]T220 owns the ability to reproduce data
with perfect fidelity.
5. What is the current problem IBM facing?
[A]Achieving high resolution.
[B]Pursuing more applications.
[C]Lowering the price.
[D]Reducing the size of the screen.
答案:CADBC
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下面小编为大家准备了 研究生入学 的相关考题,供大家学习参考。
A.保护管辖原则
B.普遍管辖原则
C.属地管辖原则
D.属人管辖原则
A.寒湿内结 B.热入营血 C.食积化热 D.寒湿化热 E.热盛伤津
B. 企业利润的大部分归资本家
C.适用于初、高级两个阶段的国家资本主义的改造
D. 国家按企业资本的股份额,每年拨付给原工商业者一定的利息
【正确分析】试题摘自1953年9月8日,周恩来作《过渡时期总路线》的报告。在初级形式的国家资本主义阶段,我国企业的利润按“四马分肥”进行分配。高级形式的国家资本主义的前期(1954年到1955年夏)也采取“四马分肥”的分配形式。后期(1955年秋到1956年)则主要采取定股定息的分配方式,因此,本题的正确答案是C选项。
【干扰分析】我国对资本主义改造实行赎买政策,并不是由国家支付一笔巨额补偿资金,而是让资本家在一定年限内从企业经营所得中获取一部分利润,故A选项错误;在“四马分肥”分配中,资方红利大体占四分之一,企业利润的大部分归国家和工人,基本上是为国计民生服务的,故B选项错误;1955年秋到1956年,企业主要采取定股定息的分配形式,即国家按企业资本的股份额,每年拨付给原工商业者5%的定息,共计10年,故D选项错误。
A.社团法人
B.财团法人
C.公益法人
D.社会团体法人
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