单项选择题

(1,1,0)是平面上的点。
A、正确
B、错误

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单项选择题

Organic nitrogen is converted back to inorganic nitrogen like ammonium through the process of ()
A、Denitrification
B、Nitrogen fixation
C、Decay
D、Nitrification

Accounting provides financial information that is only useful to business management.（）

答案：正确答案：错误