【单选题】The radio says that a terrible traffic accident happened sometime ________ 8 a.m. ________ 10 a.m. this morning.
【简答题】圆柱体在与轴线垂直的投影面上的投影具有_____________性。
【简答题】SNMP 管理模型中有三个基本组成部分,分别是 ____________.管理进程(Manager)和 _____________。
【单选题】The radio ______ the rain will stop later on.
【单选题】The radio ______ it will rain tomorrow.
【单选题】The radio says it will be rainy ______times.