The first biogas digester in Hailong village is ( ) .
A、square (正方形的)
B、circular (圆形的)
C、rectangular (长方形的)
D、diamond-shapes (菱形的)
发布时间:2025-03-22 23:12:07
A、square (正方形的)
B、circular (圆形的)
C、rectangular (长方形的)
D、diamond-shapes (菱形的)