A.梁頂相對于結(jié)構(gòu)層頂標高下降0.22m B.梁底相對于本層結(jié)構(gòu)層標高下降0.22m C.梁頂相對于本層結(jié)構(gòu)層頂標高下降0.22m D.梁底相對于結(jié)構(gòu)層標高下降0.22m