由于关税的高低不同，定价的差异，甚至是企业文化的分歧，互联网提供商常不愿意和当地的竞争对手交换资料。 他们宁愿向更大的国际互联网服务提供商交纳和收受关税。
They prefer instead to send and receive traffic with larger international Internet service providers.
天然橡胶和复合橡胶在许可证管理和关税税率方面存在较大的差异，使海关对复合橡胶的进口监管面临着较大风险。
There is obvious difference in licence management and tariff tax rate between compound rubber and natural rubber, it brings a certainty difficulty to the custom.
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