“开展劳动教育，必须以树立正确的世界观和价值观，以及培养做家务的兴趣为目的。”教育部副部长郑富芝如是说。

"Labor education must be carried out with the aim to develop the view of the world life and values and develop an interest in doing chores." said Zheng Fuzhi a Vice-Minister of Education.

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一个精确的重富立叶级数解析解用于分析四边形自由的点支横观各向异性平行四边形板的自由振动、屈曲和弯曲。

The accurate double Fourier series analytical solutions are obtained for the free vibration, buckling and bending of Point Supported Anisotropic Skew Plates with four free edges.

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乍得南部是进入苏丹的达尔富尔地区，这也是它的石油财富观的战略门户。

Southern Chad is a gateway into the Darfur region of Sudan, which is also strategic in view of its oil wealth.

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