【简答题】听下面一段对话,回答第1-3三个小题。 1. Where does Tina Smith work? A. In an office. B. In a police station. C. In a TV station. 2. What does Mr Brown want? A. Two police officers. B. Four police officers. C. Men and ...
【单选题】水准面有无穷多个,任意一个异于大地水准面的水准面与大地水准面()。
【单选题】“窗含西岭千秋雪,门泊东吴万里船”描写的是下列( )
【单选题】水准面和大地水准面的区别之一就是:大地水准面仅有1个,而水准面有( )个。