【判断题】需求指居民户在某一特定时期内,在每一价格水平上愿意而且能够购买的商品量。
【单选题】He is too shy to ask a stranger the time, ______ speak to a room full of people.
【单选题】He is too shy ____ speak English in public.
【单选题】HXD3型机车高压接地开关在( )位会导致机车受电弓升不起来,
【单选题】贯彻“三个代表”重要思想,核心在( )。
【单选题】我国最早的文字甲骨文是从( )朝开始的。
【单选题】多少集以下的电视剧被称为电视单本剧( )
【单选题】— What was wrong with John yesterday? — He was too shy to talk to ______ at the party. [ ]
【判断题】我国最早的文字是“甲骨文”,我国有文字可考的历史从商朝开始