A.≥1％ B.≥1.5％ C.≥2％
A.立即补报 B.及时补报 C.按情况补报 D.不得从事生产经营活动
A.10 B.20 C.30 D.40
A.1/10000 B.1/2000 C.1/3000
A.40kN B.50kN C.60kN D.70kN
A.10m B.15m C.20m
