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21.B根据When you wear LynQ, you use combination of GPS technology and long-range- radio frequencies to find other...”可知,它是一种可穿戴设备,可以得出选B22.C根据 Lifepack Carry-on- Closet部分的介绍“Well, the Lifepack Carry-on- Closet designed by.might change that for good.和该部分第二段“ inside, it contains set of retractable shelves to keep clothes in good order and maximize the space. . So when you get to your destination, you just need to take out the shelf system and hang it in your hotel closet.”可知这种新型设计收缩自如,给旅行者带来方便故选C