【单选题】The funny toy monkey ________ Sandy five dollars. [ ]
【判断题】休闲不是与生俱来的能力,而是后天形成的一种能力,休闲需要教育。
【单选题】How often should the buses leave?
C.
Every fifteen minutes.
【判断题】液压油的黏度随温度变化的性质称为 黏温特性。
【单选题】下列 IPv4 地址中,表示不合法的是()
【简答题】Section D 听力原文: Every year a large number of young people leave school and begin work. Some obtain jobs on farms or in industry. Others accept positions in the government services. Many seek post in b...
【判断题】相对误差比绝对误差能更好地反映测定数据的准确度。