【判断题】“蜻蜓飞得低,没有好天气”,这句话反映了事物之间的联系是客观的。( )
【单选题】— Has anything caught your eye in today’s newspaper? — Yes. A new eight-kilometer-long road is under ________ that links the port area with the motorway system. [ ]
【判断题】电动式仪表可直接用于交、直流测量,但精确度不高。
【单选题】对于一组分组或未分组数据的集中趋势测度中,( )有且只存在一个值。
【单选题】______ your today’s email instructions, we have sent our order to you.