【简答题】混凝土强度等级为C30,即立方体抗压强度标准值为30N/mm2,它具有的保证率。
【判断题】In winter, it will be cold and icy冰冷的, I will wear my jacket.( )
【简答题】混凝土强度等级为 C30 ,即混凝土 为 (填写中文名字) ,它具有 的保证率。
【简答题】It will be cold tonight. ______ an extra sweater.
【简答题】Please write an "unstated" premise that would lead to the conclusion. "Of course it will be cold tomorrow! It's been cold all week, hasn't it?"
【简答题】混凝土强度等级为 C30 ,即 为30N/mm2,它具有 的保证率。