【单选题】生狗脊片近外皮1~4mm处有一条凸起的棕黄色环纹是
【单选题】生狗脊片近外皮1~4mm处有一条凸起的棕黄色环纹是()
【单选题】[5-46]Avessel engaged in ___ shall not impede the passage of any other vessel navigating within a narrow channel or fairway.从事于捕鱼的船舶不应妨碍在狭水道或航道内航行的任何其他船舶的通行。
A.
mine clearance operation清除水雷作业
C.
dredging or surveying or underwater operation疏浚、测量或水下作业
【单选题】生狗脊片近外皮1~4mm处有一条凸起的棕黄色环纹是
【单选题】[5-54]You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel. You should ___你正准备穿越狭水道,你看见一艘仅能在狭水道内安全航行的船舶,你不应该穿越航道,假如你可能妨碍到它船。
A.
cross the channel as you are the stand-on vessel
B.
cross only if the vessel in the channel is approaching on your port side
C.
not cross the channel if you might impede the other vessel你不应该穿越航道,假如你可能妨碍到它船。
D.
sound the danger signal
【判断题】过程控制系统的特点是输入量是变化的,要求系统的输出量能跟随输入量的变化而做出相应的变化。