【单选题】2 Look! There are so many students _______ in the pool. A. swim B. are swimming C. swims D. swimming
【单选题】是( )把哥尼斯堡七桥问题抽象成了一个“一笔画”问题。
【简答题】按要求做题。 1. She has been swimming for 2 hours. (改为同义句) She has been swimming 2 hour____. 2. My little sister is always behind me. (改为同义句) My little sister me . 3. Tom played football for an hour. (改为现在完...
【判断题】驱动方式并非一成不变的,在一定条件下可以有一种驱动方式转化为另一种驱动方式。
【判断题】驱动方式并非一成不变的,在一定条件下可以有一种驱动方式转化为另一种驱动方式。
【简答题】用单词的正确形式填空。 1. Tomorrow I ___________ (invite) my cousin for supper. 2. I usually ___________ (skate) in winter. 3. It is a ___________ (sun) day. 4. There are ___________ (light) on the tree. 5. Yest...