An ideal column is ( ) , made of ( ) material, and the load is applied through the ( ) of the cross section. A: initially perfectly straight, homogeneous, centroid B: perfectly straight, nonhomogeneous, centroid C: initially straight, homogeneous, any point D: straight, nonhomogeneous, centroid

Where does the axis must pass through if the moments of areas of section with respect to an axis is zero。（ ） A: Centroid B: Centroid of mass C: Center D: Any point

When member is subjected to the eccentric loads, the wrong description of neutral axis is ( ). A: The position of the neutral axis is independent of external forces and eccentricity B: The neutral axis and the point of the external force are on opposite sides of the cross section centroid respectively C: The neutral axis is related to the shape and size of the section D: The closer the external force point is to the centroid, the farther the neutral axis is from the centroid

It can be measured by HF9600E Multi-Function Power Meter（ ） A: Current RMS B: voltage RMS C: instantaneous power D: active power

（）是Alias/Wavefront公司出品的三维动画软件，被认为是三维动画目前最顶尖的软件。

Dialect refers to geographic variation, ...rms of social group.

本学期课程中,万用表参数的“rms”表示()

均方根误差(RMS)是均方差(MSE)的算术平方根，若估计是无偏的，则RMS等于标准差。 A: 正确 B: 错误

ZEMAX默认优化函数采用RMS+Wavefront+Centroid时，使用的优化操作数是( )。 A: TRAC B: TRAR C: OPDX D: OPDC

单一速率调度算法（RMS）是一种（）调度算法