Don't repeat yourself (DRY, or sometimes do not repeat yourself) is a principle of software development aimed at reducing repetition of software patterns,[1] replacing it with abstractions or using data normalization to avoid redundancy.
Answer:
No, they need to be somewhat flexible so that forces such as turbulance don't shear the wing off.
Answer:
The match
Explanation:
You can light both the lantern and the candle if you light the match first.
I don't know of this is a homework question, but I answered it anyway :)
Correcto no se muy bien de que se trata el tema porque está en inglés.
Sorry