Middle school chemistry person who review teaching regards probing into and solve the chemical teaching problem as the basic point.

中学化学反思性教学以探究和解决化学教学问题为基本点。

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There exist many organic reactions. Probing into their Laws to serve the scientific re- search and chemical industry production, is always a topic attracting organic chemistry researchers.

有机反应多，探索其反应规律，为科研和化工生产所用，一直是有机化学工作者探讨的课题。

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Test probing is the key process for determining host plant selection, and the chemical composition of the leaf surface wax may play an important role.

试验性刺探是粉虱确定对宿主植物选择的关键过程，而叶表蜡层中的化学物质可能起重要作用。

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