A.施工技術(shù)簡(jiǎn)單、快速、經(jīng)濟(jì)B.施工技術(shù)復(fù)雜、快速、經(jīng)濟(jì)C.施工技術(shù)簡(jiǎn)單、緩慢、經(jīng)濟(jì)D.施工技術(shù)簡(jiǎn)單、快速、方便
A、20~25MPa B、22~27MPa C、25~30MPa D、30~35MPa
A、小于等于30mm B、小于等于25mm C、小于等于20mm D、小于等于10mm