【单选题】You are underway at 5 knots and see on your radar a contact 10 miles directly astern of you. 12 minutes later,the contact is 8 miles directly astern of you. What is the estimated speed of the contact?...
【判断题】Decide whether the following statements are true or false according to Text A. The higher rank the manager is at, the more disciplines he is entitled to impose on others.