A.15 B.30 C.45 D.60
A.60mm B.90mm C.150mm D.180mm
A.隨砌隨灌填 B.砌一皮后,間隔1h再灌填,便于沉實(shí) C.砌一皮灌填一皮 D.灌填順序未做具體規(guī)定,不影響施工質(zhì)量