A.0℃ B.2℃ C.3℃ D.5℃
A.0.4mB.0.3mC.0.2mD.0.1m
A.先開(kāi)挖、后下基、最后砌筑墻身、回填 B.先砌筑墻身、后開(kāi)挖、最后下基、回填 C.先開(kāi)挖、后砌筑墻身、最后下基、回填 D.隨時(shí)開(kāi)挖、隨時(shí)下基、隨時(shí)砌筑墻身、回填