32003-4×32002+10×32001能被7整除吗?为什么?
解:32003-4×32002+10×32001=32001(32-4×3+10)=32001×7,
能被7整除。
Because this area has a high rate of crime and unemployment, there are only people moving out.
A.incentive
B.incident
C.incidence
D.initiative
某教学楼平面布置如题图,采用装配式钢筋混凝土楼(屋)盖,外墙均为370mm墙,隔墙为120mm,其余均为240mm墙。底层墙高4.2m(算至基础顶),M5砂浆砌筑,隔墙墙高3.5m,用M2.5砂浆砌筑。
⑤轴上C~D轴问墙的高厚比和允许高厚比最接近下列()项数值。
A.26.3;29.3
B.10.6;22.3
C.13.5;22.3
D.13.5;29.3