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【简答题】
主机A向主机B发送TCP报，首部中的源端口是m而目的端口是n。当B向A发送回信时，其TCP报中的首部中的源端口和目的端口分别是什么?
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【简答题】根据流场中流动参数随时间的改变情况可将流动分为 和 。
【单选题】A: Yellow River. This is Port Radio. What is your present course and speed? Over.B: Port Radio. This is Yellow River. My present course and speed is 115°, 15 knots. Over.Q: What is the course and s...
A.
15°, 25 knots
B.
15°, 20 knots
C.
05°, 15 knots
D.
15°, 15 knots
【单选题】Your present course is too close to the vessel you are overtaking
A.
You are advised to change course to the ingoing vessel
B.
You are advised to change course to the outgoing vessel
C.
You are advised to change course to clear the vessel being overtaken
D.
You are advised to change course to clear the south limit of the fairway
【简答题】S1:Vessel Blue Whale.What is your present course and speed? Over.S2:Helicopter,this is Blue Whale.My present course and speed is 190 degrees,16 knots.Over.Q:What does helicopter want to know?A. vessel...
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