【简答题】短文改错。 One day I happened to find the chatting room on my QQ, there people were chatting in English. I tried to chat with some of them. To my surprised, I found the oral English of some junior students...
【判断题】低聚糖是由2-10个单糖分子缩合而成的。()
【判断题】地理实体数据的时间特征可以反映现象或物体随时间的变化,其变化周期有:短期、中期、长期和超长期。
【判断题】低聚糖是由2-10个单糖分子缩合而成的。
【单选题】My parents and I are flying to London for a holiday and I’ll the chance to practice my spoken English.