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产CH4反应的关键底物是()

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CH4、NH3、H2O、HF   HF、H2O、NH3、CH4   H2O、HF、CH4、NH3   HF、H2O、CH4、NH3、  
±0.20%CH4  ±0.10%CH4  ±0.01%CH4  ±0.05%CH4  
≥1.0%CH4;≥1.0%CH44;<1.0%CH4  ≥1.5%CH4;≥1.5%CH44;<1.0%CH4  ≥1.0%CH4;≥1.5%CH44;<1.0%CH4  ≥1.5%CH4;≥1.0%CH44;<1.0%CH4  
±0.20%CH4  ±0.10%CH4  真值的±10%CH4  真值的±20%CH4  
≥1.0%CH4;≥1.0%CH4;  ≥1.5%CH4;≥1.5%CH4;  ≥1.0%CH4;≥1.5%CH4;  ≥1.5%CH4;≥1.0%CH4;  
“N2”、“N2-CO2”、“N2-CH4”、“CH4”;  “CH4”、“N2-CH4”、“N2-CO2”、“N2”;  “N2-CO2”、“N2”、“N2-CH4”、“CH4”;  “CH4”、“N2-CH4”、“N2”、“N2-CO2”。  
0.1  -0.1V  -0.15V  -330mV以下  
纤维素  乙酸  C1化合物  B项和C项  
纤维素  乙酸  C1化合物  C  
高能位的有机物通过一系列的好氧生化反应后,使其变为小分子的无机物,其能位变低  活性污泥在厌氧条件下处理效果好  好氧生物处理的最终产物包括CO2、H2O、CH4、NH3等  厌氧生物处理产酸阶段的产物包括有机酸、CO2、CH4、NH3等  
±0.1%CH4  ±0.2%CH4  0.1%CH4  0.2%CH4  
0.04%CH4,0.4%CH4  0.1%CH4,0.4%CH4  0.02%CH4,0.4%CH4  0.1%CH4,0.5%CH4  
0.1%CH4,0.1%CH4  0.1%CH4,0.4%CH4  0.01%CH4,0.1%CH4  0.01%CH4,0.01%CH4  
CO2  H2  乙酸  甲醇  
≥0.5%CH4,≥0.5%CH4,<0.5%CH4  ≥1.5%CH4,≥1.5%CH4,<1.5%CH4  ≥1.0%CH4,≥1.0%CH4,<1.0%CH4  
CO2  H2  乙酸  甲醇  乙醇  

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