[解析]
(1)C.细节理解题。根据第二段的There's nothing more discouraging for dog owners than buying new toys that their dogs dislike.Thanks to Pet﹣Commerce,an online pet store created by Brazil's Petz,you can avoid such disappointing experiences by allowing dogs to choose their favorite products.(对于狗主人来说,没有什么比买了他们的狗不喜欢的新玩具更令人沮丧的了。多亏了巴西Petz公司创建的宠物在线商店pet﹣commerce,你可以通过让狗选择它们喜欢的产品来避免这种令人失望的经历。)可知,Pet﹣Commerce旨在满足宠物狗的礼物选择。故选C。
(2)D.推理判断题。根据第二段最后一句Once it detects excitement,it automatically adds the products to your shopping cart and you can finalize the deal when you're done.(一旦它检测到兴奋,它就会自动将产品添加到你的购物车中,当你完成时,它就会完成交易。)可知,摄像头检测的是狗的兴奋感。故选D。
(3)A.细节理解题。根据第四段第三句All videos are designed in yellow and blue,as they are the colors that dogs see best.(所有的视频都是用黄色和蓝色设计的,因为它们是狗看得最清楚的颜色。)可知,第4段中视频的颜色是基于狗的视觉。故选A。
(4)D.标题归纳题。根据第一段Brazilian pet shop chain Petz has combined face﹣recognition technology and artificial intelligence to create a groundbreaking platform which allows dogs to buy their favorite products.(巴西宠物连锁店Petz将人脸识别技术和人工智能相结合,创造了一个开创性的平台,让狗可以购买它们喜欢的产品。)可知,文章介绍了一种能让狗自由选择喜欢的产品的先进技术。故选D。