【单选题】短被段无线电波具有许多特点,下面四种描述中,哪一种是不正确的?
【简答题】It is a forty-minute bus journey to her office. The bus journey to her office ____________________ forty minutes.
【单选题】— How about your journey to Mount Tai? — We _____ a pleasant journey but for the rain.
【单选题】A suitable title for the passage would be______.
A.
A journey that scared me
C.
The wild West African lorry
D.
A comic journey in West Africa
【单选题】短波段无线电波具有许多特点,下面四种描述中,哪一种是不正确的_____。 (130571:第7章 地面通信系统与业务) (A-0,B-0,C-0,D-0,错误-0)
【多选题】蓄电池是将电能转换成化学能储存起来,需要时将化学能转变成为电能的一种储能装置。蓄电池的组成部分有( )。
【单选题】— 12,500 kilometres is too long a journey! — Yes. the journey was long and hard, the Red Army (红军) pushed on. [ ]
【多选题】在基础档案设置中,总账中参照不到的档案是______。
【简答题】在基础档案设置中,总账中参照不到的档案是______。
【简答题】Check your tyres before a long journey. Before a long journey, remember _____________________ your tyres.