由于现实生活中，我认识很多购机用户对手机了解程度并不深，甚至只停留在多少G内存、多少G存储、以及多少像素的层面。如果是停留在这个认知层面的话，购机是非常容易踩坑的。所以我希望各位对手机的一些重要参数能有一些基本认知。这样在选购时也不容易

Sure "it" may be used in all of those constructions and others, but soem on the illustrations could use adjustments.I'm not clear on the last bit in the sentence, "which just one would be the best". I thought it is analogous for the clause in "I am gonna address the things they are", the order of item along with the verb is reversed (I forgot what