Seven of the ten highest-scoring school districts in the state of São Paulo had a private education company, COC, to manage their classrooms.
在圣保罗州,十个高分学校地区中的七个拥有私立教育公司(COC),来管理他们的各个班级。
COC is a relatively new class of polymers when compared to polypropylene and polyethylene.
COC是一个相对较新级别的聚合物,与聚丙烯和聚乙烯相比。
The contents of colloidal trace metals were mainly influenced by the factors of COC content and total trace metals, but were all affected by the wind-wave disturbance action fundamentally.
胶体态痕量金属的含量主要受COC含量、痕量金属总量等因素的影响,但归根结底均受制于风浪的扰动作用。
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