题目7单选题
The elastic semi infinite space foundation model is suitable for simulating the foundation of bearing stratum ()弹性半无限空间地基模型适于模拟持力层( ) 的地基A. Large thickness and low strength 厚度较大,强度较低B. Large thickness and high strength厚度较大,强度较高C. small thickness and low strength厚度较小,强度较低D. small thickness and low strength厚度较小,强度较高