题目内容

氮肥的吸湿性大小顺序是()。

A. NH4NO3>NH4HCO3>尿素>(NH4)2SO4>NH4Cl
B. NH4NO3>NH4HCO3>尿素>NH4Cl>(NH4)2SO4
C. NH4HCO3>NH4NO3>尿素>(NH4)2SO4>NH4Cl
D. NH4HCO3>NH4NO3>尿素>(NH4)2SO4>NH4Cl

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CO和CO2不是合成氨催化剂的毒物。

A. 正确
B. 错误

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A. 正确
B. 错误

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