精神科的护理管理:"Impersonate a client after authentication" 的中文是什么？

"Impersonate a client after authentication" 的中文是什么？ an "A" 还是 a "A" 什麼是"TBBP-A" "A za"是什么意思？ "a za","baxia","fighting"? 什么是"run a dll as a app"? why is the letter "A" like a flower why is the letter "A" like a flower "A ZA A ZA "什么意思？ how to read "(a+b)(a-b)=a*a-b*b" in english