What does a ≡ B ≡ C mean?

RELATED INFORMATIONS

• 1. (a=b || a=c || b=c)
• 2. The usage of Bai in English
• 3. Is there such usage in English it's the time to do sth Is it OK to add the? Before time? Is this a specific article?
• 4. Some English usages of "others" It's like "other", "another", "the others" and "other's"
• 5. Point out the usage of the words in brackets in the following sentences 1. Attack and discharge of public transport disk 2. Rhinoceros Milu (Manchu)
• 6. Explain the part of speech and meaning (or usage) of the words in brackets in the following sentences 4. The king is the king of literature 5. What about earth and stone?
• 7. In the following groups of sentences, the words in brackets have the same meaning and usage A. Chopping the wolf's head with a knife B. For a long time, the eyes seem to be in peace (it) the dog blocks it and does not make the front (it) C. More than ambition, desire is more than living D. It's the renovation of Yueyang Tower (NAI)
• 8. Don't understand English Usage He doesn't turn the lights on unless you get money to buy things with, so in the dark we look and see all kinds of things, me and Nenny What's the use of 1. With here? 2. Why do you use two words to talk about look and see?
• 9. I don't understand the usage of this topic We have not decided ___________ to visit next month. A.where B.what C.which D.when I did a, but the answer was B What's on the line? Let's talk about the reasons
• 10. I don't understand its usage here Here is a sentence from an article about family members And here are Mom and Dad,and here's my older brother,Lester,again with his wife and three of their children:Nicolas ,Ryan,and Laura. How can the "again" above be used there, You ought to meet his man.He really knows how to bring a person out. Here, bring a person out
• 11. What do you mean by $a & $B = $C? Please be more specific The basic knowledge is needless to say. I have also done PHP for several years I didn't make it clear just now $a = 1; $b = 2; $c = 3; $a && $b = $c; echo "a:$a "; echo "b:$b "; echo "c:$c "; It's like this a:1 b:3 c:3 $a = 0; $b = 2; $c = 3; $a && $b = $c; echo "a:$a "; echo "b:$b "; echo "c:$c "; It's like this a:0 b:2 c:3 What's the situation?
• 12. How to calculate 15.7/0.12 + 184 / 9.6 simply
• 13. What is origin symmetry in plane rectangular coordinate system
• 14. If there are only four positive integer solutions to the inequality 2x-a ≤ 0, the value range of a is obtained
• 15. Is the solution of the equation x = 40 or 40
• 16. Solve the equation 1 / 7: x = 9 / 14: 3 Solve the equation 1 / 7: x = 9 / 14: 3
• 17. How to establish the connection between the zero point of function and the root of equation?
• 18. 15-1 out of 8 is equal to?
• 19. -4.5 + (- 17 / 3) equals
• 20. Given the equation x ^ 2-kx-2 = 0 about X, let the two equations be X1 and X2, and 2 (x1 + x2) > x1x2, find the value range of real number K