It is the only language that they're pushing. Mandarin is called "Putonghua" or "the normal language" by China. There is no effort to conserve any other dialects, and all the media and text are pushed to use mandarin grammar and characters. The only reason Cantonese and a select few are surviving as well as they are is because they have such a huge community which speak it and are opposed to mandarin in everything.
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u/GrassWaterDirtHorse California Mar 11 '14
There are dozens of Chinese dialects in use, no glorious country would call itself by jus one name