问题补充:
Some companies are thinking of ways to save natural by making better use of the water used in the bathroom.
A. resources
B. sources
C. power
D. energy
答案:
(答案→)A. resources
B. sources
C. power
D. energy
解析:考查名词辨析。resource”资源”,natural resources指“自然资源” source“来源, 出处;河流的源头, 发源地”。power“力量,权力, 势力; 能力,体力”。energy“能量, 能源;精力,活力, 干劲”。