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【简答题】
设G是n个结点m条边的连通图，则G的生成______个结点______条边．
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【简答题】电影战狼2中博士女儿是怎么回事?
【单选题】In restricted visibility, a vessel which detects by radar alone the presence of another vessel shall determine if a close quarters situation is developing or risk of collision exists.If so, she shall ...
A.
sound the danger signal
B.
when taking action, make only course changes
C.
avoid altering course toward a vessel abaft the beam
D.
all of the above