She has won several prestigious vocal competitions , including the dvork competition in karlovy vary and the ard competition in munich . she appears frequently in theatres of nice , lisbon , amsterdam , aix - en - provence , innsbruck , frankfurt , leipzig , bonn , mannheim and bayreuther festspiele 她经常在尼斯、里斯本、阿姆斯特丹、普罗旺斯、因斯布鲁克、法兰克福、莱比锡、波恩、曼海姆的剧院，以及拜罗伊特音乐节等献艺。
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Professor michael hui graduated from the chinese university of hong kong with a bachelor of business administration degree in 1980 . he obtained his caae ( certificat approfondu d administration des entreprises ) from the university of aix - marseille , aix - en - provence in france in 1983 and ph . d . from london business school in 1988 许敬文教授一九八年取得香港中文大学工商管理学士学位，一九八三年于法国universityofaix - marseille , aix - en - provence取得caae （ certificatapprofondudadministrationdesentreprises ） ，复于一九八八年取得伦敦商学院博士学位。
