
A.1A、1A
B.3A、0A
C.
D.4.24A、3A
[单选题]A.[P]=165kNB.[P]=181kNC.[P]=346kND.[P]=420kN
[单选题]A.[F]=A[σ]B.[F]=2A[σ]C.[F]=34[σ]D.[F]=44[σ]
[单选题]A.[F]=A[σ]B.[F]=2A[σ]C.[F]=34[σ]D.[F]=44[σ]
[单选题]A.[P]=165kNB.[P]=181kNC.[P]=346kND.[P]=420kN
[单选题]A.[P]=165kNB.[P]=181kNC.[P]=346kND.[P]=420kN
[单选题]A.[F]=A[σ]B.[F]=2A[σ]C.[F]=34[σ]D.[F]=44[σ]
[单选题]A.[F]=A[σ]B.[F]=2A[σ]C.[F]=34[σ]D.[F]=44[σ]