单选题 He was thoughtful and grave—but the orders he gave were enough to bewilder a crew.
【正确答案】 D
【答案解析】该句意为:他好思考,又表情严肃,但下达的命令足以使全体工作人员发蒙。bewilder的意思是“使……困惑,使……不理解”,与perplex和puzzle同义。exasperate:使……恼怒,使……十分生气;convict:宣判有罪;dispatch:派,派遣。