10. Science and technology is the first productive force, and it is the concentrated embodiment and main symbol of () A. Advanced productive forces B. Advanced production relations C. Four modernizations D. Talent and knowledge

RELATED INFORMATIONS

• 1. The symbol f represents an operation The symbol "F" represents an operation, and its operation results for some numbers are as follows: (1) f (1) = 0, f (2) = - 1, f (3) = 2, f (4) = - 3 ·; (2) f（1/2）=2,f（1/3）=3,f（1/4）=4,f（1/5）=5,···. According to the above rule, f (1 / 2013) + F (2014)
• 2. A complete collection of chemical equation symbols As long as it is a chemical equation symbol, it should be complete Sorry, I don't have any wealth
• 3. The meaning of symbol in chemical equation______ ，“=”______ ，“↑”______ ，“△”______ ，“↓”______ ．
• 4. What is the meaning of symbols in chemical equation To be specific, such as the meaning of the arrow, the meaning of the arrow on the left and right
• 5. Gas symbol
• 6. Symbol problem of chemical equation Under any circumstances, it is necessary to use ↑
• 7. In addition to numbers, there are Chinese characters and letters in the middle code of China's car license plate, which is represented by the abbreviation of each province ()
• 8. In GB2312-80, the coding principle of Chinese characters is: one Chinese character is coded with______ It is represented by a byte A.1 B.2 C.3 D.4
• 9. How to read logo in English?
• 10. How to read the logo in Chinese
• 11. The following codes are used for the access, processing and transmission of Chinese characters GB code a B internal code C location code D-code
• 12. What is the code of Chinese characters processed and stored in the computer
• 13. In the process of solving the equation, if you want to change the position of the number, do you want to change the operation symbol?
• 14. What are the operation symbols with four points around a fork,
• 15. 4 = 1984, fill in the appropriate symbols between the seven 4's (bracket can be added)
• 16. The result is equal to 1988.4 = 1984 by adding proper operation symbol between the following seven 4
• 17. 0.84 () 0.2 = 0.6 () 7 2.5 () 5 = 0.025 () 0.05 3.9 () 0.6 = 9 () 0.5 fill in the operation symbol
• 18. By adding proper arithmetic symbols between the seven four, the result of operation can be 1984.4 = 1984 Add proper arithmetic sign between 7 4 to make the result of operation be 1984 In addition, one train is 160 meters long, and it takes 30 seconds for the whole train to cross the 440 meter bridge. How many meters does this train travel per second?
• 19. 2.1 0.5 = 0.840.2 fill in the operation symbol
• 20. For any non-zero natural numbers x and y, the symbol "√" is defined to represent an operation, and X √ y = {[x * x-x * (x-1)] + y * y * y-5.2} * 2-1 So 5 √ 5 =?