I think trenches had zigzag patterns because they could make people had a better aim at shot and more protection.
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I am not very sure and I might be wrong but I’m pretty sure that it is C.
The statement that would best describe the “Three Principles of the People” would be that Sun Yat-sen's ideas for governing China. It <span>is a </span>political philosophy<span> developed by </span>Sun Yat-sen<span> as part of a philosophy to make </span>China<span> a free, prosperous, and powerful nation. </span>
Maybe 5 hours............................................
<span>c. accustomed to modern technology
</span>Today's engineers, accustomed to modern technology, consider Egyptian tools to be somewhat crude.
NOT:
a. to be somewhat crude
b. consider Egyptian tools
<span>d. no interrupter</span>