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A．The function of brain.
B．The function of nerve cells.
C．The five senses.
D．The chemical processes.
答案
更多“A．The function of brain.B．The function of nerve cells.C．The five senses.D．The chemical”相关的问题
第1题
请根据短文内容，回答题。
Music
Music is one of the most beautiful forms of artistic expressions ever invented. In movies and plays, music has an added function: it not only moves people but also can shock people.＜br＞
Our eardrums can withstand sound within 20 to 80 decibels (分贝 ) . Once sound exceeds this limit, even beautiful music will become car-splitting noise and harm health. A strong blast (响声 ) of high sound can twist and break a solid iron sheet. High sound of 150 decibels can kill a healthy rat.＜br＞
In movies, sometimes the hero can produce a sound that ordinary people can&39;t hear and only those who have the same ability can feel. In nature, there is actually sound that is beyond our hearing. In physics, the sound that exceeds 20,000 hz is called ultrasonic (超音波的). Dolphins, whales and bats can make such high-frequency sound. It does no harm to health.＜br＞
Sound less than 20 hz is called infrasonic (次声 ) waves. When we move, the air will vibrate.＜br＞
The vibration of air can produce infrasonic waves. As the frequency of infrasonic waves is close to that of people&39;s internal organs, infrasonic wave may cause resonance (共振) in human bodies. As a result, people&39;s vision may weaken and internal organs may rupture (断裂). However, whether an infrasonic wave can be used as a weapon depends on its intensity. If its intensity is very low, it won&39;t damage internal organs or a person&39;s health. If the intensity of infrasonic wave exceeds 160 decibels, it is extremely harmful. When wind blows at a force of 3 or 4 over the sea, it will produce infrasonic waves of several decibels. Only typhoons can produce infrasonic waves of over 100 decibels. At present, scientists can only produce infrasonic weapons in the lab with the help of advanced scientific tools and powerful electric power.
What could be the best title of the passage？ 查看材料
A.The power of music
B.The harms of noises
C.The magic of sound
D.The discovery of infrasonic waves
第2题
A．The function of brain.
B．The function and nature of nerve cells.
C．The five senses.
D．The chemical processes.
第3题
A．The function to influence.
B．The watchdog function.
C．The function to advertise.
D．The function to inform.
第4题
What is mainly discussed in the text？
A．The function of phone.
B．How to use phone.
C．The etiquette of using mobile phone.
D．Phone.
第5题
What is the talk mainly about？
A．The function of an atom.
B．The development of atom theory.
C．The structure of an atom.
D．Methods to find an atom.
第6题
In this passage, the example of Populists is used to illustrate ______ .
A．the function of two-party system in United States
B．the function of third party to bring to prominence the interest of neglected group
C．the disadvantage of the third party in the United States
D．the rise of the third party in the United States
第7题
What is the talk mainly about？
A．The function of computers.
B．The operation of computers.
C．The disadvantages of computers.
D．The emergence of computer crimes.
第8题
A．the other
B．another
C．others
D．other
第9题
The word "it" in Line 3, Para 3 probably refers to ______.
A．the lid
B．coffee -maker
C．the brewing process
D．the model
