【简答题】Desertification is the accumulated result of inappropriate land use and a harsh climate. Over-cultivation exhausts the soil, overgrazing leaves behind little vegetation that protects it from erosion, ...
【简答题】A: Look at the time.B: It's six o'clock. We ________ go. We don't want to be late.A: ________ you like to walk to the restaurant? It isn't far.B: That's a good idea.A: ________ you bring a copy of the...