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【单选题】
He let the team _____ by not trying hard enough.A.
down
B.
of
C.
in
D.
on
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举一反三
【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
【简答题】安静时主要产热器官是 ______ 。 运动时 主要产热器官是 ______ 。
【简答题】项目质量的双重性是指