一厂生产的灯泡,价格不是比二厂高,就是寿命比二厂短。
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He admired her courage, but __________________(他认为她那样代帮是不明智的).
如果数据库表中建立主索引,一旦将该数据库表移出数据库后,该主索引将转变为______索引。
The article introduces Mark Twain and his novels, which are well known to readers worldwide and hold an important position in American literature history.
黄梅戏是我国享有盛名的戏曲大剧种之一,其中《沙家浜》、《天仙配》都是其经典剧目。( )
A. 对
B. 错