ADS301mXuất hiện trong 2 đề thi
What are two fundamental pieces that there's actually a whole bunch of tech behind this, a whole bunch of different systems that are determining what results get shown to the user?
Các lựa chọn
AThere's Penguin and Panda
BThere's Google Analytics and Google Adwords
CThere's the paid search engine and the organic engine
DThere's binary data and meta data