【单选题】We have time and again _____ that we will never be the first to use nuclear weapons.
【简答题】请根据所看视频填空,注意时态或单复数。 1. We are _____ a _____ time right now. 2. Some of us are cutting down their ____. 3. It is a _____ without guns, bombs or smoke. 4. We shall _____ against _____. 5. We have the __...
【简答题】板块构造学说(板块运动):地球表层的岩石圈不是一块完整的刚性外壳,而是由十几个不同的大陆板块和大洋板块组成的岩石圈块体。它们受地幔对流的驱动,漂浮在高温塑性的 上,进行着缓慢、但不停息的水平移动。
【简答题】We have time and again _____ that we will never be the first to use nuclear weapons.A. declared B. accused C. announced D. blamed