A.立方體抗壓強(qiáng)度標(biāo)準(zhǔn)值; B.軸心抗壓強(qiáng)度標(biāo)準(zhǔn)值; C.軸心抗壓強(qiáng)度設(shè)計(jì)值; D.抗拉強(qiáng)度標(biāo)準(zhǔn)值
A.性能B.技術(shù)C.特點(diǎn)D.都不對(duì)
A.腺上皮細(xì)胞數(shù)量較少B.腺上皮細(xì)胞彌散分布C.細(xì)胞大小及形態(tài)較一致D.背景中不見間質(zhì)細(xì)胞