色彩三要素:色调()、色度()、饱和度()。
参考答案:色相;明度;纯度
What ___ the book I put here yesterday?
A.became of
B.has become of
C.became about
D.has become about
导管随着混凝土灌注应逐步提升,其埋入混凝土深度应为5~0m,相邻两导管内混凝土高差不应大于()m
A.0.5
B.1
C.1.5
D.2