According to the above graph, what percentage of total freshwater use refers to cooking, showering, and flushing the toilet?
According to the above graph, what percentage of total freshwater use refers to cooking, showering, and flushing the toilet?
去除被处理物品上的有机物、无机物和微生物的过程叫做() A: 去污(decontamination) B: 冲洗(flushing)
去除被处理物品上的有机物、无机物和微生物的过程叫做() A: 去污(decontamination) B: 冲洗(flushing)
Singapore is a clean and orderly country, and you may get stuck with a heavy fine or even face arrest if you are caught doing the following things except _____. A: smoking in public places B: littering and eating in the MRT C: crossing the road at a red light D: flushing the toilet
Singapore is a clean and orderly country, and you may get stuck with a heavy fine or even face arrest if you are caught doing the following things except _____. A: smoking in public places B: littering and eating in the MRT C: crossing the road at a red light D: flushing the toilet
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