【单选题】8 / 361已知 e1=0.80e_1 = 0.80e1=0.80,α=0.20 MPa−1\alpha = 0.20\,\mathrm{MPa}^{-1}α=0.20MPa−1,则压缩模量 EsE_sEs 约为?A4.0 MPa4.0\,\mathrm{MPa}4.0MPaB9.0 MPa9.0\,\mathrm{MPa}9.0MPa正确C0.16 MPa0.16\,\mathrm{MPa}0.16MPaD18.0 MPa18.0\,\mathrm{MPa}18.0MPa参考答案B参考解析Es=(1+e1)/α=1.80/0.20=9.0 MPaE_s = (1+e_1)/\alpha = 1.80/0.20 = 9.0\,\mathrm{MPa}Es=(1+e1)/α=1.80/0.20=9.0MPa。