irt

• 网上心理测验

  采用Item Response Theory（IRT）技术，进行Computerized Adaptive Testing（CAT）方式的中文网络心理测验。

  www.psy-test.net - 2020-04-16
• E-Cards

  hundreds of photos and animations to choose from for online greetings. Great cards for birthdays and other special occasions. Every card you send helps support nature and the environment.

  www.e-cards.com - 2020-04-16
• Regards.com

  The web's largest collection of free greeting cards including free birthday ecards, animated e-cards, and free holiday ecards.

  www.regards.com - 2020-04-16
• 出境游_国外旅游_境外自由行旅游推荐-PIRT梦想旅行网

  PIRT梦想旅行www.mxtrip.cn,涵盖190多个国家的景点/酒店/购物/美食攻略,3亿条旅游点评,为您出境游、出国游、国外旅游、境外旅游、境外自由行保驾护航,出境游就选PIRT梦想旅行网.

  www.mxtrip.cn - 2020-02-24
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