【单选题】Although the two players are ______ in the tennis court, they are really good friends.
【判断题】核电站反应堆中采用的放射性原料与原子弹采用的原料一样,都是高浓缩铀
【单选题】Although the two players are______ in the tennis court, they are really good friends.
【判断题】地陪在接团前要与旅行社计调人员核实该团客人所住房间的数目、类别、用房时间是否与旅游接待计划相符,核实房费内是否含早餐。( )
【简答题】调查显示:日本福岛第一核电站因地震导致反应堆一回路主泵停止运行,核燃料棒没有足够的水覆盖冷却,核燃料棒上端过热破裂,引起严重核泄漏…用水做冷却剂的原因是______.4月8日,环境紧急响应中心专家周斌接受新华社记者采访时表示,“核泄漏时,放射性物质好比墨水滴入一条河流,向周围不断运动”可见,核放射性物质的运动也可形成______现象.
【单选题】Although the two players are ______ on the tennis court, they are really good friends.