(单选题)

Which of the following is not among the main targets that should be decarbonized?

A.steel-making

B.shipping

C.cement

D.water supply

参考答案：D

参考解析：

细节理解题。根据第二段最后一句“The main targets are those sectors that use coal, oil and gas as raw materials, such as in steel-making, cement and fertilizers, and in shipping and aviation.”可知，主要目标是以煤、石油和天然气为原料的部门，如炼钢、水泥和化肥以及航运和航空业。D项（水供应）没有涉及。故选D。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语