控制混凝土的碱含量,其作用是:().
A.减小混凝土的收缩
B.提高混凝土的耐久性
C.减小混凝土的徐变
D.提高混凝土的早期强度
参考答案:B
- - -What do you usually have for breakfast ?
- - -_________milk and________eggs.
A. A little; a few B. A little; a little C. A few; a little
隋唐面部化妆艺术特点是()
A、浓妆艳抹、色彩鲜艳
B、色彩素雅、清新
C、华贵、富丽堂皇
D、五官分明、夸张