In order to redeem cash, credit card free upgrade, integral maturity exchange of goods and other reasons to induce people to log in to the URL of the sms.

以“积分兑换现金”、“信用卡免费升级”、“积分到期兑换商品”等理由，诱导市民登录短信中的网址进行办理。

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The integral of one over a quantity is the natural log.

这种形式的积分结果,是自然对数。

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