【单选题】Though inland waterways were important transportation system, they were soon replaced by the more convenient railroads.
【单选题】Jim had a very ________ look when Tom told him Mary was not coming.
【判断题】压泵产生困油现象的充分且必要的条件是:存在闭死容积且容积大小发生变化
【单选题】Jim had a very________look when Tom told him Mary was not coming.
【单选题】出発( )とする時に、電話がありました。
【单选题】邦德在电影《金手指》中展现座驾的各项功能,随之( )便成为了世界上最著名的车。
【单选题】中式面点师制作的面点和提供的服务,其质量的好坏,决定着企业的( )和信誉。