题目内容

在自变量的相关矩阵中,当自变量间的相关系数较大时会出现多重共线性问题 ( )

A. 对
B. 错

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当一些重要的自变量的回归系数的标准误差较大时,我们认为可能存在多重头线性。 ( )

A. 对
B. 错

Which of the term of payment need to be conducted by bank’s draft( )

A. M/T
B. collection
C. L/C
D/D

When ( ) happens the party that fails to perform the contract is allowed to relieve liabilities to non-performance.

A. War
B. world market price goes up
C. manufacture fault
D. currency devaluation

As to the seller, the risk of D/P, D/A and L/C can be arranged(from great to small) as the following: ( )

A. D/A,D/P and L/C
B. L/C,D/P and D/A
C. D/P,D/A and L/C
D/A, L/C and D/P