— Hello, this is Lily speaking. Could I speak to Mr. Black?

— Sorry, he _____ the Xuanwu Lake Park.[ ]

A. has been to              

B. went to

C. has gone to              

D. will go to

对施工速度很快的砂土地基，宜采用三轴仪不固结不排水试验或固结不排水试验的强度指标作相关的计算。