what's is it-N- ,电路上标识这个东西,这个符号标识的是什么东西,没有见过这个符号.

what's is it-N- ,电路上标识这个东西,这个符号标识的是什么东西,没有见过这个符号. What is it?|It's . What's this?It's letter P.what___is it?It's green.white.what's this letter?It's sletter N.It's red.P-E-N.is it''____''?Yes,it is.I have__blue pen .it's____to what is this ?It is a pen而不是It is pen.但为什么what's this? It's N.就是正确的?N前不能有冠词吗? 英语翻译what's this?it's letter p.what color is it?it's green.what's this and what color is it?this is letter e.it's yellow .what's this letter?it's letter n.it's red.p-e-n.is it apen what make is it?it's Toyota. What is it?(7:45) It's------------------------ What is it?(9:15) It's------------------------ what撇s is it 还是what is it 为什么 What is this?It is ----------N What season is it?It's fall.What season is it?It's fall. That's just what it is here. What I__ is this?It's x. What ( )is this It'sv that's what it is翻译下 that's what it is 歌词 改错What's time is it?（） what day is tomorrow?it's Tuesday .