An entry of .79 for descent into the TGT SPD line on the FMC ECON PATH DES will:
A.A.Change the descent mode to a M.79 SPD DES
B.B.Change the page title to display M.79 PATH DES
C.C.Result in VNAV & LNAV disengagement
D.D.Result in VNAV disengagement
正确答案是B