Of the two major media of communication writing an

正确答案：It is generally held in linguistics that speech is the primary mediumwriting the secondary．The former has a history of at least 1 00000 years whereas the latter only about 6000 years．Besidesspeech plays a greater role in daily communication．A larger amount of communication is carried out in speech than in writing and speech is the way in which people acquire their native language．Childrenfor instancelearn to speak before they learn to write． 语言学家们普遍认同口头语在人类交流媒介中居第一位书面语居第二。 前者有至少10万年的历史而后者仅有6 000年左右的历史。在日常语言交际中口头语起着更大的作用；口头语比书面语传达的交流信息量大；人类是以口头语方式习得本族语的。例如儿童就是先学会说再学会写的。
Itisgenerallyheldinlinguisticsthatspeechistheprimarymedium,writingthesecondary．Theformerhasahistoryofatleast100,000yearswhereasthelatteronlyabout6,000years．Besides,speechplaysagreaterroleindailycommunication．Alargeramountofcommunicationiscarriedoutinspeechthaninwritingandspeechisthewayinwhichpeopleacquiretheirnativelanguage．Children,forinstance,learntospeakbeforetheylearntowrite．语言学家们普遍认同,口头语在人类交流媒介中居第一位,书面语居第二。前者有至少10万年的历史,而后者仅有6000年左右的历史。在日常语言交际中口头语起着更大的作用；口头语比书面语传达的交流信息量大；人类是以口头语方式习得本族语的。例如,儿童就是先学会说再学会写的。