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【多选题】
Which of the following are water pollutants?( )
A.
Chemical oxygen demand
B.
Ammonia nitrogen
C.
Heavy metal
D.
Suspended solids
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【多选题】The objectives of the circular economy plan for Guangdong Silver Island Lake Paper-making Park are( ).
A.
Recycling energy
B.
Recycling gas resources
C.
Recycling water resources
D.
Recycling solid resources
【多选题】In the design principle of circular economy development mode in China, the 3R principle refers to ( ).
A.
reduction
B.
reuse
C.
resource Recovery
D.
high efficiency