单选题
The Texas Opera Theater was established as a
subsidiary
of the Houston Grand Opera in order to give young singers performing experience.
【正确答案】
D
【答案解析】[解析] 句意：德克萨斯歌剧院作为休斯敦大歌剧的子公司，是为了给年轻的歌手提供获取表演经验的机会。subsidiary附属物，子公司。branch分支，分部。doctrine教条，学说。rival竞争者。patron赞助人，资助人。