A.11帶,66° B.11帶,63° C.19帶,117° D.19帶,111°
A.強(qiáng)度B.抗沖擊韌性C.彈性模量D.抗凍性
A.CFC樁 B.砂石樁 C.樹(shù)根樁 D.鋼渣樁