A.攪拌地點(diǎn) B.澆筑地點(diǎn) C.攪拌地點(diǎn)和澆筑地點(diǎn) D.攪拌地點(diǎn)或澆筑地點(diǎn)
A.70%B.50%C.80%D.40%
A.1.2MpaB.1.5MpaC.2.5MpaD.3.0Mpa