【名词&注释】
钢筋混凝土(reinforced concrete)、压缩系数(compressibility)、高压缩性土
[单选题]高压缩性土,其压缩系数a1-2应满足的条件是:()
A. 0.1MPa≤a1-2<0.5MPa B. a1-2<0.1MPa C. 0.1MPa≤a1-2<0.3MPa D. a1-2≥0.5MPa