【单选题】3 / 8已知HA=100.000 mH_A=100.000\,\mathrm{m}HA=100.000m,a=1.456 ma=1.456\,\mathrm{m}a=1.456m,b=0.832 mb=0.832\,\mathrm{m}b=0.832m,则HBH_BHB为?A100.624 m100.624\,\mathrm{m}100.624m正确B99.376 m99.376\,\mathrm{m}99.376mC101.456 m101.456\,\mathrm{m}101.456mD100.832 m100.832\,\mathrm{m}100.832m参考答案A参考解析h=1.456−0.832=0.624h=1.456-0.832=0.624h=1.456−0.832=0.624,HB=100.624 mH_B=100.624\,\mathrm{m}HB=100.624m。