下列各句中，画线的成语使用恰当的一句是

A．这个人能力很差，这样的大事对他来说，简直是以汤沃雪。

B．他经常铤而走险，去一些寥无人烟的地方写生。

C．妈妈告诉我现在社会上鱼龙混杂，可要时时提防。

D．本着曲突徙薪之义，战士们都苦练军事技巧，准备参战。

As some countries attempt to shift away from natural gas or petroleum energy systems toward coal-based systems, the need for coal slurry(煤泥) will increase in these countries,（）transport mode will be the first choice for transfer this kind of product.

A.Water carriage

B.Pipeline transport

C.Rail transport

D.Surface transport