A.-2P
B.-1.414P
C.-P
D.-P/2
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN
[单选题]等截面直杆,轴向受力如图,杆的最大拉伸轴力是( )。题59图A.10kNB.25kNC.35kND.20kN