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【多选题】
转速电流双闭环凋速系统中电流调节器的作用有()
A.
对电网电压起抗扰作用
B.
启动时获得最大的电流
C.
电机限制电枢电流的最大值
D.
转速调节过程中使电流跟随其给定电压变化
E.
对负载变化起抗扰作用
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【简答题】已知函数f(x)满足2axf(x)=2f(x)-1,f(1)=1,设无穷数列{a n }满足a n+1 =f(a n ). (1)求函数f(x)的表达式; (2)若a 1 =3,从第几项起,数列{a n }中的项满足a n <a n+1 ; (3)若1+ 1 m <a 1 < m m-1 (m为常数且m∈N,m≠1),求最小自然数N,使得当n≥N时,总有0<a n <1成立.
【多选题】Which of the followings are the benefit of successful team building?
A.
Team building increases greater flexibility for the organization.
B.
Team building enhances Relationships and Trust between different teams.
C.
Team building improves morale and efficiency.
D.
Team building fosters creativity and innovation.
【单选题】Which cost is not recorded as part of the cost of a building?
A.
Annual building maintenance
B.
Construction materials and labor
C.
Concrete for the building’s foundation
D.
Real estate commission paid to buy the building
【单选题】浇口应开设在塑件壁厚( )处,以减少流动阻力,并有助于补缩。
A.
较厚
B.
较薄
C.
均匀
D.
以上都不是
【单选题】若x→0时,函数f(x)为x^2的高阶无穷小,则 ( ).
A.
0
B.
1
C.
D.
1/2
【简答题】熟悉各种在线翻译工具,并将下面文字翻译成中文: Authority of the Board of Directors The Board of Directors shall be highest body of authority of the Company and shall decide all major issues of the Company. The powers and fu...
【简答题】Authority of theBoard of Directors The Board of Directors shall be highest body of authority of the Company and shall decide all major issues of the Company. The powers and functions of the Boardshall...
【单选题】All of the following were reasons for the proposal of the amendment to the constitution, the Volstead Act, EXCEPT that ______.
A.
without liquor, people would not drink
B.
there would be no further danger to the public from alcoholism
C.
there would be a rise in the cost of alcoholic beverages
D.
people would not become drunk or create a public nuisance
【判断题】财产清查的范围是存放在本企业的各项财产物资。
A.
正确
B.
错误
【简答题】在(0,1]上定义函数f(x)如下:若x∈(0,1]在十进位小数表示式(采用无穷位小数表示)为 x=0.a 1 a 2 …a k …, 则令f(x)=max{a k :k∈N},试证明f(x)在(0,1]上可测.
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