Mei, a poet in the Song Dynasty, wrote "Ode to a Waterwheel": "A solitary wheel carries cold water, and he is self-employed. With the flow of self-speed, noble tilt. " It describes a tube.

Test analysis: From the material "self-speed with the flow, high and falling back", it can be seen that this is a pipe truck in the Tang Dynasty, and the pipe truck is an irrigation tool. Therefore, the selection of item A is inconsistent with the description of the material "cold water shipped alone"; Item c is agricultural tools; Item D is a tool for blast furnace ironmaking.

Comments: This question examines the development of irrigation tools. Besides mastering irrigation tools, the development and evolution of production tools also need to be mastered. Intensive cultivation is an important feature of ancient agriculture in China. Among them, the progress of production tools is the premise of intensive cultivation. In the Spring and Autumn Period and the Warring States Period, the iron plow Niu Geng appeared, the plow wall appeared in the Western Han Dynasty, and the farming technology appeared. In the Tang Dynasty, Qu Yuan's plow and truck appeared, all of which promoted the increase of agricultural output.