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搜题
【单选题】
气在中医理论中比较完整的基本概念是A.
泛指机体的生理功能
B.
构成世界的基本物质
C.
维持人体生命活动的营养物质
D.
构成和维持人体生命活动的最基本物质
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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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