Why dont provide explanations for Nortel exams?

Today, I received a letter from one of our users, he said: I knew your products for Nortel exams are great from some forums, but I purchased three Nortel exams for 920-128, 920-240 and 920-355 recently, I found there are no explanations for all of them, why?
In fact, this is a common complaint from the passguide users, i would like to give a reason here.
In fact, passguide dont offer explanations for all products, because it has provided the best quality for all Q&As. One can get almost all of real questions from the exam pools. So everyone who bought the products just need to memorize all the Q&As, then they could pass exam easily with high scores. The most important is YOU CAN SAVE MUCH ENERGY AND TIME with with passinng the exam easily!

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