Global science knowledge contest

Popular science knowledge is an easy-to-understand language that explains the texts of various scientific phenomena and theories. For the purpose of popularizing scientific knowledge.

Modern biomechanics originated from about the end of the 1960s. The development of biomechanics and biomechanics of motion has entered a period of formation and development. During this period, the experts conducted active research on the biomechanical properties of human and animal movements. The following scholars’ scientific research is widely known: Alexander's "Biomechanics" in 1970; in 1974, Vukov Brodovich conducted animal movements. Mathematical simulations, and thus promoted the development of robotic manufacturing techniques; in 1968, Silijeboland created the theory that animals move in a uniform step;

First, short answer questions:

1, What is the "three gold project"?

The U.S. information highway program has received warm response not only in the United States but also in the international arena. Many countries have introduced corresponding strategic measures. China is now facing the opportunity to transform from an industrial society to an information society. China’s scientists and administrators will not be indifferent. In 1994, the state proposed the “Three Gold Project”, namely the Jinqiao Project, the Jinguan Project, and the Gold Card Project, to carry out information infrastructure construction. The country was first established among key enterprises. A China Economic Information Network constitutes a China-based Golden Bridge (ChinaGBN); it conducts computer networking in customs and other fields, establishes a national backbone network, and uses computer networks and IC card systems for data management in banks, insurance, and public utilities. Use electronic money to promote greater exchange of financial industry information.
In short, it is necessary to realize the socialization of information resources, the networking of information services, the enhancement of economic strength, the improvement of work efficiency, the promotion of social development, and the improvement of people’s lives throughout the country.
With the development of the Sanjin Project, Gold Taxation Project and Jinwei Project have emerged later. They have separately implemented the taxation computer network system and electronic medical and health information to enhance the national taxation and people's health.
It can be foreseen that in the near future, computers in all units and households in the country will enter the Internet and become a computer boat that truly roams in the network ocean.

2, what is the red tide

"Red Tide" is also called "Red Tide". It is a catastrophic oceanic phenomenon in which seawater is discolored by the high density of toxic algae. It usually occurs in the late spring and fall. When the red tide occurs, the oxygen content in seawater is greatly reduced, resulting in fish and shrimp. Crabs, shellfish and other marine organisms died in large numbers. In 1993, red tides occurred in some areas of China's coastal areas, resulting in huge losses in shrimp production. The production of red tides was the result of the massive discharge of offshore municipal wastewater and industrial waste water and the increase of toxic algae nutrients.

3, what is a clone

The original meaning of "clone" is "asexual reproduction".
In layman's terms, it is "copying" and "copying" creatures instead of relying on parents to breed offspring.
In theory, any cell contains all the genes of an organism and can be cloned. Actually, at present, only cells of any part of the plant, such as root, stem, leaf or seed cells, can be cloned. The same complete plant, like the tomatoes cloned in Beijing, and the cloning of any part of the animal's cells, is much more difficult. Therefore, the British scientists conducted hundreds of experiments on cloned sheep, only succeeded in 7 cases, and only one case was from The most active mammary gland cells of adult female sheep were cloned. The sheep was called "Dolly". The other 6 cases were cloned from embryonic cells. Since 1986, cloned goats cloned from China have been cloned. And cloned rabbits are also embryo cloned. The American cloned monkeys are also cloned from embryonic cells. Since the animals cloned from these embryonic cells are not cloned from adult animal somatic cells, the cloned animal is not the same gene as any adult animal. Belonging to allogeneic replication, in other words, "copying" is the next generation of animals that provide fertilized egg embryos, which is equivalent to having a "multiple birth" or equivalent to its children. And somatic cell clones are Copying, "copying" is the animal that supplies the cells. So, the Dolly sheep sheep cloned by the British scientists is the first "copy", "copy" of the mammals. According to reports, Dolly has In 1998, she laid a lamb and she became a mother.

Second, multiple choice questions:

There are four circles around the earth, what is the outermost layer (A).
Atmosphere B. Hydrosphere C. Soil Lithosphere D. The biosphere divides the atmosphere into layers according to the relationship between air density and altitude (C)
A.3 B.4 C.5 D.6
In 1831, who discovered the principle of electromagnetic induction and laid the theoretical foundation of the generator (A)
A. Faraday B. Edison C. V. Siemens
On October 12, 1999, the number of world population breakthroughs was twice that of 1960. The dramatic increase in the world's population caused tremendous pressure on global resources and the ecological environment. (B)
A, 5 billion B, 6 billion C, 7 billion D, 4.5 billion environmental protection law was passed and promulgated and implemented at the A meeting of the National People's Congress on December 26, 1989.
A, 11th session of the 7th session, 11th session of the 8th session, 12th session of the 7th session, 12th session of the 12th session
What is the biggest source of pollution in natural water bodies (B)
A, industrial sewage farm sewage B, industrial sewage domestic sewage C, domestic sewage farm sewage D, acid rain domestic sewage environmental protection policy is C, leading the masses, everyone hands-on protection of the environment, benefit the people.
A. Reasonable planning Overall layout Full use of harm to benefit B, Comprehensive planning and rational distribution Full use of harm to benefit C, Comprehensive planning and rational distribution Comprehensive utilization of harm for profit D, Reasonable planning for comprehensive planning Full use of harm for clean energy Including B et al.
A, solar nuclear energy, water energy, wind energy, B, solar energy, water energy, wind energy, energy, wind energy, energy, wind energy, water energy, wind energy, water energy, wind energy, water energy, wind energy, water energy, wind energy, water energy, and the most important inventions that changed human life in the 20th century are: A.
TV B, nylon C, plastic D, the following computers do not belong to the world's four scientific problems are: D.
A, Human Genome Structure B, Dark Matter C in the Universe, Controlled Nuclear Fusion D, Nanotechnology
In 1991, China initiated and hosted the Ministerial Conference on Environment and Development in Developing Countries, and published "_A__".
A, Beijing Declaration B, Agenda 21 C, Convention on Biological Diversity D, Framework Convention on Climate Change
2. The intersection angle of the Earth's equatorial plane (the plane perpendicular to the axis of rotation) and the earth's orbital plane (the ecliptic plane) is: A.
A, 23°26 B, 35°37 C, 40°13 D, 18°5
In 1973, under the direction of Premier Zhou Enlai, the State Council held its first National Environmental Protection Conference in _A__.
A, Beijing B, Shanghai C, Guangzhou D, Fushun What is "DTS" B.
A, Digital Technology System B, Digital Home Theater System
C. Management Information System D. The characteristics of nuclear energy in the digital education system are A.
A. High concentration of energy B. Cleaning C. Cheap The following are not the four major inventions in ancient China: E.
A, Compass B, Printing C, Seismograph D, Gunpowder E, Environmental Quality Standards for Steam Engines, Pollutant Emission Standards, Environmental Basic Standards, Sample Standards, and Method Standards, collectively referred to as _A__, are an important part of China's environmental legal system. .
A, Environmental Standard B, Environmental Certification C, Environmental Quality D, Environmental System Lasers Produced in: A.
A, 1953 B, 1961 C, 1960 D, 1948
The 27th session of the United Nations General Assembly decided to set June 5 of each year as __A_.
A, World Environment Day B, Earth Day C, Day of Water Saving D, The most outstanding advantage of Ai Bird Day's computer network is _A___
A. Shared resources B. High precision C. Fast operation D. Large memory capacity
CAI refers to __B__
A. System Software B. Computer Aided Instruction Software
C. Computer-aided design software D. Office automation system Although there has been great progress in computer technology in the past half century, its operation still follows the basic principle proposed by a scientist. He is _D___
A. Newton B. Einstein C. Edison D. von Neumann
Inside the computer, all information is accessed, processed and transmitted in the form of _C___.
A. ASCII Code B. BCD Code C. Binary D. Hexadecimal The State Council issued the "Computer Software Protection Regulations," the date of entry into force is __C__.
A. June 1985 B. August 1990 C. October 1991 D. January 1992
The source program can be converted to the target program is C.
Debugger program B. Interpreter program C. Compiler program D. The first electronic digital computer invented by the editorial program is __A__
A. ENIAC B. EDNA C. EDSAC D. UNIVAC
A complete computer system should include D.
A. Computer and its external devices B. Host, keyboard, monitor
C. System software and application software D. Hardware system and software system In the following storage devices, the information is lost after power off.
A. ROM B. RAM C. Hard Disk D. The language that the floppy disk computer can directly recognize is C.
A. Assembly language B. Natural language C. Machine language D. The software system of high-level language computer includes D.
A. Programs and Data B. System Software and Application Software
C. Operating System and Language Processing Programs D. Programs, Data, and Documents The following memory stores the fastest speeds.
A. Floppy disk B. Hard disk C. Disc D. Memory The correct thing in the following statement is D.
A. The bigger the computer, the stronger its function
B. Both monitors have the same screen size, so their resolution must be the same
C. The more needles the dot matrix printer has, the more Chinese fonts can be printed.
D. In the microcomputer performance index, the higher the CPU's frequency, the faster the operation speed of a floppy disk has been infected with the virus, in order to prevent the virus from infecting the computer system, the correct measure is D.
A. Delete all programs on the floppy disk to remove the virus B. Write protection at the floppy disk nick
C. Put the floppy disk for a while before using D. Reformat the floppy disk
UNIX is C.
A. single-user single-task operating system B. single-user multi-tasking operating system
C. Multi-user multi-tasking operating system D. Multi-user single-task operating system
Computers made with transistors as electronic devices belong to B.
A. The first generation B. The second generation C. The third generation D. The fourth generation of a somatic cell's total DNA "spiral staircase" is about A meters.
A.2 B,3 C,4 D,1
The diameter of DNA is only C angstroms (1 angstrom equals 1/10 nanometers).
A, 30 B, 40 C, 20 D, 50
The abbreviation of "Wireless Application Protocol" is: A.
A, WAP B, PPP C, DNS D, ISP
Bluetooth technology is a: B.
A. A technology of genetics B, a short-range wireless communication technology C, a broadband technology that does not belong to the following in nanotechnology: C.
A, DSL B, Satellite C, DNS D, Land-based wireless technology
B The largest mammal in the world is
A Elephant B, Blue Whale C, Mustang D, Shark
C. In China’s neighboring countries, there are both Dragon Boat Festival, Chung Yeung Festival and Spring Festival from China, as well as its own traditional festivals. Among them, the most distinctive feature of the Cherry Blossom Festival is
A, North Korea B, South Korea C, Japan D, Russia
The Chernobyl nuclear power plant accident in C in 1986 was the worst accident in the world’s nuclear power history.
A, United States B, France C, former Soviet Union D, Germany