According to the conversation, what kind of man John is?
A.He is different and creative.
B.He is kind-hearted.
C.He is completely terrible.
D.He is frank.
第7题
下列哪一组肥料,不能混合施用。()
A.氯化铵和硫酸铵
B.尿素和氯化铵
C.尿素和硫酸
D.碳酸氢铵和硫酸铵
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