题目

Vienna is famous for having many great musicians. ________, Mozart wrote hundreds of wonderful pieces of music there. A． For example B． In fact C． As a result D． In my opinion 答案：A【详解】 句意：维也纳以拥有许多伟大的音乐家而闻名。例如，莫扎特在那里写了数百首美妙的乐曲。 考查介词短语。 For example例如； In fact 事实上； As a result 结果是； In my opinion 依我所见。根据 “Mozart wrote hundreds of wonderful pieces of music there” 可知莫扎特是维也纳众多音乐家中的一个例子，用 “For电话信号分为模拟信号和数字信号两种，用电流传递的信号叫做________。