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Which form. other than era4 speech could be most commonly used among blind people？
A．Picture signs.
B．Braille.
C．Body language.
D．Signal flags.
答案
更多“Which form. other than era4 speech could be most commonly used among blind people？A．Pictur”相关的问题
第1题
A.Interuteric crest
B.Left ureteric orifice
C.Right ureteric orifice
D.Urachus
E.Urethral orifice
第2题
Operators of computers should give instructions to work in the form. of program______.
A．which are introduced to turn into computers
B．through which computers could process "language"
C．which could tell computers what to do and how to do it
D．all of the above
第3题
A.which
B.that
C.and which
D.and that
第4题
A、which
B、has
C、with
D、spoken
第5题
A、volt
B、wrapped
C、trapped
D、deserted
第6题
Which of the following statements is true？
A．The humorous story was created abroad.
B．The humorous story is basically American.
C．The humorous story is also loved in other countries.
D．The humorous story is the least popular in the U. S.
第7题
A.public void Name() throws IOException
B.public void Name() throw IOException
C.public void Name()
D.public IOException Name()
第8题
Which of the following is true of Livingston？ ______
A．He thinks he has discovered a new possibility in the link between sun spots and the weather on the Earth.
B．He has great doubts about the theory that the sun's frequent changes have an influence on the Earth's climate.
C．He has been recently informed by other scientists of the possibility that more sun spots will appear.
D．He does not think the causes of the sun spots will be fully revealed by scientists in the near future.
第9题
1. “The Nobel Prize in Physiology or Medicine 2004”Press Release(15分)
4 October 2004
The Nobel Assemblyat Karolinska Institutet has today decided to award The Nobel Prize in Physiology or Medicine for 2004 jointly toRichard Axel and Linda B. Buckfor their discoveries of "odorant receptors and the organization of the olfactory system"
Summary
The sense of smell long remained the most enigmatic of our senses. The basic principles for recognizing and remembering about 10,000 different odours were not understood. This year's Nobel Laureates in Physiology or Medicine have solved this problem and in a series of pioneering studies clarified how our olfactory system works. They discovered a large gene family, comprised of some 1,000 different genes (three per cent of our genes) that give rise to an equivalent number of olfactory receptor types. These receptors are located on the olfactory receptor cells, which occupy a small area in the upper part of the nasal epithelium and detect the inhaled odorant molecules.
Each olfactory receptor cell possesses only one type of odorant receptor, and each receptor can detect a limited number of odorant substances. Our olfactory receptor cells are therefore highly specialized for a few odours. The cells send thin nerve processes directly to distinct micro domains, glomeruli, in the olfactory bulb, the primary olfactory area of the brain. Receptor cells carrying the same type of receptor send their nerve processes to the same glomerulus. From these micro domains in the olfactory bulb the information is relayed further to other parts of the brain, where the information from several olfactory receptors is combined, forming a pattern. Therefore, we can consciously experience the smell of a lilac flower in the spring and recall this olfactory memory at other times.
Richard Axel, New York, USA, and Linda Buck, Seattle, USA, published the fundamental paper jointly in 1991, in which they described the very large family of about one thousand genes for odorant receptors. Axel and Buck have since worked independent of each other, and they have in several elegant, often parallel, studies clarified the olfactory system, from the molecular level to the organization of the cells.
第10题
Even if you are a good high-jumper, you can jump only about seven feet off the ground. You cannot jump any higher because the earth pulls you hard. The pull of the earth is called gravity.
You can easily find out the pull of the earth. If you weigh yourself, you will know how much gravity is pulling you.
Since there is gravity, water runs down hill. When you throw a ball into the air, it falls back down. Because of gravity, you do not fall off the earth as it whirls(旋转) around.
Then, can we get away from the earth and go far out into space？ Now you can do it, because spaceships have been invented. Then spaceship will go so fast that it can escape the earth’s gravity and carry you into space.
(1) In this passage, the word “gravity” means_______.
A.the pull of everything.
B.the force of attraction(吸引) among objects.
C.the force which attracts objects towards the centre of the earth
D.the force which attracts the earth towards the sun.
(2) When you slip you always fall to the ground because_______.
A.the earth always turns round.
B.the earth has gravity
C.the earth’s gravity is greater than your weight.
D.you are careless.
(3) Gravity is strong that_______.
A.it can throw a ball into the air.
B.it makes you jump only seven feet.
C.it can let you fly away from the earth.
D.it can keep everything on earth.
(4) Because of gravity,_______.
A.water flows everything.
B.we can go everywhere by ship.
C.water always flows downwards.
D.fish can live in water.
(5) We can get away from the earth by spaceship because_______.
A.the spaceship goes very fast.
B.the earth can’t pull the spaceship.
C.the spaceship has a strong force.
D.the spaceship can jump higher than other things.
