The hydrogen bond on the complanate triangle structure of thiourea, a kind of neutrality substance, can be the identification point to anion.

硫脲作为电中性物质，其平面三角形的极性氢键可作阴离子的识别位点。

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Liberal advocacy groups, including one called Free Press, used the net neutrality cause as a rallying point for its broader agenda of nationalizing ISPs, newspapers and broadcast media.

FORBES: Deep in the Net Neutrality Trenches