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【单选题】
The open loop transfer function is K/[s(s+1)^2]. Using the Nyquist criterion, find the range of K (K>0) for stability for the system.A.
k<1
B.
k>1
C.
k<2
D.
k>2
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【单选题】按GB7588-2003《电梯制造与安装安全规范》钢丝绳的公称直径不小于8mm。曳引轮节圆直径最小应为（）。
A.
240mm
B.
320mm
C.
400mm
D.
480mm
【判断题】The Tibetan New Year is calculated according to theTibetan lunar calendar. ( )
A.
正确
B.
错误
【单选题】Passage OneQuestions 1 to 5 are based on the following passage.In late April, 33-year-old Li Yang climbed into her new car, Suzuki Alto and headed west. She “just kept going to see how far I could get...
A.
It encourages more people to live in the suburbs.
B.
It tried to build more highways and tunnels.
C.
It sets a limit on the number of new car license plates.
D.
It advocates people to take public transportation.
【单选题】Passage OneQuestions 1 to 5 are based on the following passage.In late April, 33-year-old Li Yang climbed into her new car, Suzuki Alto and headed west. She “just kept going to see how far I could get...
A.
Rising income.
B.
Cheaper new cars .
C.
More new roadways.
D.
The freedom of owning a car.
【单选题】Passage OneQuestions 1 to 5 are based on the following passage.In late April, 33-year-old Li Yang climbed into her new car, Suzuki Alto and headed west. She “just kept going to see how far I could get...
A.
In feudal times, people were unwilling to leave the village where they were born.
B.
Shanghai city sets a good example for Beijing city to control the number of cars.
C.
One benefit of living in the suburbs is that people can live in a larger community.
D.
Private-car ownership actually means more freedom and comfort.
【简答题】The Tibetan New year, also known as Losar, is the most important festival in the Tibetan calendar. “Lo” stands for year while “sar” means new. It 1._____________ (celebrate) over a period of two weeks...
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