当经营杠杆系数是3,财务杠杆系数是2.5时,则综合杠杆系数是( )
A. 5.5
B. 0.5
C. 1.2
D. 7.5
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息税前利率变动率相对于销售量变动率的倍数是( )
A. 经营杠杆系数
B. 财务杠杆系数
C. 综合杠杆系数
D. 边际杠杆系数
The logic of approximate equality ( ).
A. Does not recognize the deviation of measurement data
B. Pursuits of a single goal
C. Believes in measurement data totally
D. Takes the measured data seriously
The least square method aims to reach the minimum value of ( ) to solve the inconsistent equations.
A. Residual sum of squares
B. Residual sum
C. Residual sum of absolute value
D. Maximum residual
Divide a line segment into two parts, so that the ratio of the length of one part to the total length is equal to the ratio of the length of the other part to the length of this part, which is the golden division ratio. ( )