【简答题】Identify the different meanings of the same word in each sentence. Translante the underlined words or expressions. Recess 1. The parliament is in recess now. 2. They take a break in a deep recess in t...
【单选题】A girl and her bicycle have a total mass of 40.0 kg. At the top of the hill her speed is 5.0 m/s, and her speed doubles as she rides down the hill. The hill is 10.0 m high and 100 m long. How much kin...