单项选择题
A.1.2m B.1.4m C.1.7m D.2.2m
A.150kN B.190kN C.250kN D.300kN
A.{{*HTML*}}5.60×10<sup>3</sup>kN B.{{*HTML*}}6.65×10<sup>3</sup>kN C.{{*HTML*}}16.08×10<sup>3</sup>kN D.{{*HTML*}}119.70×10<sup>3</sup>kN