In order to make up for the lost time, they are working _____.[ ]

A. like crazy

B. as crazy

C. like crazily

D. as crazily

油库输油管线直线段每隔（），防火堤内的管线每隔（）焊接接地端子，用BVR16及以上规格的BVR连接地网或独立接地极，连接螺栓采用不小于M10的不锈钢螺栓或热镀锌螺栓。

A.200m～300m；20m～30m

B.100m～200m；10m～20m

C.200m～300m；10m～20m

D.100m～200m；20m～30m