【多选题】下列属于组合砌体构造要求的是( ) 。
A.
面层水泥砂浆强度等级不宜低于M15,面层厚度30~45mm
B.
面层混凝土强度等级宜采用C20,面层厚度大于45mm
D.
当组合砌体一侧受力钢筋多于4 根时,应设置附加箍筋和拉结筋
【单选题】At the 18th International AIDS conference in Vienna, activists want to draw attention to the issue of
A.
male homosexual relationships.
B.
female homosexual relationships.
C.
unprotected sex between men and women.
D.
pregnant women with AIDS.
【单选题】_______ is a minimal meaningful linguistic unit of language, not divisible or analyzable into smaller forms.
【简答题】a minimal meaningful unit of a language ( )
【简答题】a minimal meaningful unit of a language is ___
【简答题】A
minimal meaningful unit of a language is ().
【多选题】下列属干组合砌体构造要求的是( )。
A.
面层水泥砂浆强度等级不宜低于 M15,面层厚度30~45mm
B.
.面层混凝土强度等级宣采用 C20,面层厚度大于45mm
D.
当组合砌体一侧受力钢筋多于4根时,应设置附加箍筋和拉结筋