Walter Adamson isA．a mobile phone gambler.B．an Internet and mobile services consultant.C．a

Who is the creator and a great master of the historical novel？A．John Keats.B．Walter Scott.

Walter Scott is the first major______, exerting a powerful literary influence both in Brit

衡量响度的的单位是（)。A.Sone;B.Mel;C.dB;D.Phon;E.Hz。

响度级的单位是（)。A.Sone;B.Mel;C.dB;D.Phon;E.Hz。

______compiled the first English dictionary.A．Samuel JohnsonB．Walter ScottC．James BoswellD

从技术发展角度看，最早出现的IP电话工作方式是 A．PC－to－PC B．PC－to－Phone C．Phone－to－PC D．Phon