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| About Instant Order Service |
| Payment Method: | We support main credit card such as Visa, Master, Mastercard, American Express, Discover, Switch/Solo,ECheck.
You can choose your own currency to pay and no registration is required to order.
Pay directly using any credit card.
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| Delivery Method: |
Your item information will be displayed on your computer screen instanlty after payment.
And we will send the order to your payment email address(check your trash box too).
Also, you can register using your payment email address and log in CN-USA.com to view order history.
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| Delivery Time: | Your order is normally completed within minutes but may take up to 24 hours. Please use the inquiry link in your order email if you didn't receive in time.
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| Item Service Guarantee |
Rosolve within 3 business days. |
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特点：
⑴ 图书分类与数量海量，其中包括法律、经济、计算机等五十余大类，全文总量4亿余页，论文300万篇，数据总量30000GB，并且每天仍在不断的增加与更新。为目前世界最大的中文在线图书馆；
⑵ 24小时在线服务永不闭馆，只要上网您可随时随地进入超星数字图书馆；
⑶ 图书的智能检索与在线找书专家的共同引导，帮助您及时准确查找阅读到书籍；
⑷ 超星图书格式与超星阅览器的技术成熟，开创独有的流式阅读技术，阅读更为安全可靠;
⑸ 16×7节假日不休息的在线技术客服人员通过客服热线电话、在线论坛、电子邮件等可以为您随时解答疑问。
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Account Recharge
Contact us
1-888-267-3036
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