【单选题】图中各物块自重及摩擦均不计,物块受力偶作用,其力偶矩的大小皆为M,方向如图。则关于A、B两点约束力的大小和方向说法中正确的是( ).【图片】
A.
FA 和 FB 一定皆为 0 ,不存在方向的问题。
B.
力偶必须由力偶平衡,故 FA 和 FB 必等值、反向形成力偶矩不为0的力偶。
【多选题】图中各物块自重及摩擦均不计,物块受力偶作用,其力偶矩的大小皆为 M ,方向如图。则关于 A 、 B 两点约束力的大小和方向说法中正确的是 ( ).
C.
力偶必须由力偶平衡,故 FA 和 FB 必等值、反向形成力偶矩不为 0 的力偶。
D.
FA 和 FB 一定皆为 0 ,不存在方向的问题。
【判断题】司法必须严格依照法定职权和法定程序进行。
【单选题】Which picture shows one of the largest financial institutions in the world?
【多选题】图中各物块自重及摩擦均不计,物块受力偶作用,其力偶矩的大小皆为 M ,方向如图。则关于 A 、 B 两点约束力的大小和方向说法中正确的是( ).
A.
FA 和 FB 一定皆为 0 ,不存在方向的问题。
B.
力偶必须由力偶平衡,故 FA 和 FB 必等值、反向形成力偶矩不为0的力偶。
【单选题】Which of the following statements is most likely correct regarding the function(s) of financial institutions in risk management? I. Create markets and instruments to hedge financial risks. II. Provide...
【单选题】Oldest Universities in the WorldMost of the oldest universities in the world are located in Europe, and as such, many of the surviving institutions have highly revered academic programs.Universities, ...
B.
University of Salamanca.
D.
University of Bologna.
【单选题】Oldest Universities in the WorldMost of the oldest universities in the world are located in Europe, and as such, many of the surviving institutions have highly revered academic programs.Universities, ...
B.
The pursuit of beauty.
C.
The notion of academic freedom.
D.
The notion of equal opportunity.
【多选题】当前,我国医务社会工作可以介入的领域有 ( )
【判断题】当前,我国医务社会工作可以介入的领域有精神疾病与精神健康、康复服务等领域。