Which of the following are sources of graywater?(choose 2)

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试卷: LEED GA模拟题A[查看]
Which of the following are sources of graywater?(choose 2)
A: Municipal potable water supply systems
B: Wells
C: Toilets
D: Showers
E: Washing machines

参考答案: DE

本题解释:
Municipal potable is potable water;Well water is usually potable water;Toilet water that is flushed becomes blackwater; Shower water that goes down the drain is then classified as graywater, depending on local code;Washing machines is usually classified as graywater depending on local code.Washing machines