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【多选题】
我国是《伯公约》的缔约国,因此,应遵守《伯公约》的有关规定,《公约》规定( )
A.
各国在著作权保护方面给予其他成员国国民最惠国待遇
B.
凡出版的作品必须在首次出版一份复制品上注“版权标记”后,享有公约的国际保护
C.
各成员国对作品的版权保护成员国国内法
D.
各成员国提供的著作权保护不能低于公约规定的最低限度
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【简答题】计算下列波形的幅度和频率 ( 经探头接入 ) : ( 1 ) V / div 位于 0.2 档, t / div 位于 2 μ s 档。 1 H = 2div , D = 3div 2 H = 5div , D = 2div . 3 H = 3div , D = 5div ( 2 ) V / div 位于 0.05 档, t / div 位于 50 μ s 档。 1 H = 5div , D = ...
【多选题】以下哪种检索词能同时检索出tianjin university和university tianjin
A.
tianjin university
B.
tianjin AND university
C.
tianjin (W) university
D.
tianjin (N) university
【简答题】计算下列波形的幅度和频率 ( 经探头接入 ) : ( 1 ) V / div 位于 0.2 档, t / div 位于 2 μ s 档。 1 H = 2div , D = 3div 2 H = 5div , D = 2div . 3 H = 3div , D = 5div
【简答题】What is the determining factor in classifying whether a radio wave is a suce wave or a space wave?
【单选题】The lower the spreading factor, the more payload data a signal can convey on the radio interface.
A.
convert
B.
transmit
C.
transform
D.
generate
【单选题】Which of the following is not the direct contributing factor to radio failure ____
A.
wrong frequency selected
B.
transponder failure
C.
receiver or transmitter inoperative
D.
adverse weather conditions
【单选题】In my opinion , Tianjin is not as expensive in price as Beijing but Tianjin is in traffic.
A.
the most organized
B.
more organized
C.
so organized as
D.
as organized as
【简答题】计算下列波形的幅度和频率(经探头接入): (1) V/div位于0.2挡, t/div位于2 μs挡。 H=2 div, D=3 div;
【单选题】She has been in Tianjin for ten years. Tianjin has become her second _________.
A.
family
B.
house
C.
home
D.
room
【判断题】Tianjin Radio Factory built the first black-and-white television set in China.
A.
正确
B.
错误
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