S1:What is your speed? S2: My sea speed is 20 knots on an average ; slow speed 5 knots ;dead slow speed 3 knots ; convoy speed 4 knots and harbour speed 10 knots. Q: Which of the following statements is true?
选项:
A:The ship’s slow speed is 4knots
B:The ship, s dead slow speed is 3 knots
C:The ship’s convoy speed is 5 knots
D:The ship ’s harbour speed is 15 knots
发布时间:2024-04-22 07:47:39