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【判断题】
阻容耦合多级放大电路Q点相互独立,它只能放大交流信号。
A.
正确
B.
错误
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举一反三
【单选题】The problem requires_____immediately.
A.
dealing with
B.
to deal with
C.
deal with
D.
being dealt with
【单选题】直线命令中刀位点快捷键是哪一个
A.
G
B.
S
C.
E
D.
O
【多选题】下列有关开运算和闭运算的说法正确的是____。
A.
使用同一个结构元素对目标图像先进行腐蚀运算,然后再进行膨胀运算称为开运算。使用同一个结构元素对目标图像先进行膨胀运算,然后再进行腐蚀运算称为闭运算。
B.
闭运算具有磨光物体内边界的作用,而开运算具有磨光图像外边界的作用。
C.
开运算与闭运算都具有幂等性。
D.
开运算能够除去图像中孤立的小点,毛刺和连接细线,而总的位置和形状不变;闭运算能够填平小孔,弥合小裂缝,而总的位置和形状不变。
【单选题】直线命令中中点快捷键是哪一个
A.
M
B.
P
C.
N
D.
T
【单选题】The silence of the library is sometimes broken by a sudden cough or the sound of pages__________.A
A.
8.The silence of the library is sometimes broken by a sudden cough or the sound of pages__________. A.turning
B.
turned
C.
being turned
D.
having turned
【简答题】无失真信源编码器的熵为H(U)=2.35bit/符号,则编码后的熵H(W)=______bit/码字;若平均码长为2.6bit/信源符号,则H(X)=______,信息率R=______,η c =______,冗余度γ c =______。
【单选题】A clever bit of artistry, instead of lengthening the distance between us______and the exalted artist, ______it.
A.
plebeians… widens
B.
laymen … attenuates
C.
dilettantes … repeals
D.
knaves… estimates
E.
critics … advertises
【单选题】The problem requires _______ immediately.
A.
dealing with
B.
to deal with
C.
C deal with
D.
D being dealt with
【单选题】The CCTV Tower, _______ the base is an electrical equipment shop, is frequently visited by travele
A.
8.The CCTV Tower, _______ the base is an electrical equipment shop, is frequently visited by travelers. A.which
B.
whose
C.
of which
D.
That
【简答题】闭运算是使用同一个结构元素对图像先膨胀再进行()的运算。
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