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【单选题】
自适应控制的自动舵中,在恶劣天气情况下,由海浪所引起的高频干扰会产生没有意义的操舵响应,这种形式的操舵不仅造成舵机的机械磨损,而且会引起推进能耗损失。采用 可以很好地滤去高频干扰,A.
自适应最优控制器；
B.
自适应的卡尔曼滤波；
C.
自适应PID控制；
D.
自适应船舶数学模型。
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皮皮学刷刷变学霸
举一反三
【单选题】Everyone has climbed up to the top of the mountain, ______?
A.
haven't they
B.
don't they
C.
won't he
D.
doesn't he
【单选题】He climbed up into the tree and picked all of the fruit ______ reach.
A.
near
B.
inside
C.
within
D.
beyond
【单选题】We should be quick ______ he has climbed up the top of the mountain.
A.
that
B.
in which
C.
which
D.
in that
【单选题】He had ever climbed this mountain several months before, but ________ he couldn’t find the way this time.
A.
anyhow
B.
somehow
C.
somewhat
D.
sometime
【单选题】Bob’s leg got hurt when _______ up Huangshan. [ ]
A.
climbing
B.
his climbing
C.
climbed
D.
he climbed
【单选题】He climbed up into the tree and picked all the apples ______ reach.
A.
within
B.
in
C.
be of his
D.
inside
【单选题】He climbed up into the tree and picked all the fruit______ reach.
A.
within
B.
beyond
C.
off
D.
inside
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