节约()的方法是通过优化项目建设方案、重大布局和结构调整,节约原材料消耗,提高原材料利用效率。
A.用水
B.能源
C.用土地
D.原材料
参考答案:D
These English songs are very popular and they often____ on the radio all the time.
A.play
B.played
C.are played
D.were played
“给定资料5”讲述了广东和重庆上榜幸福城的事。请结合实际,谈谈影响幸福城的主要因素。 [要求] 条理清晰,分析合理,语言准确,不超过300字。