Google搜尋參考資料: 1. Hydrogen - Wikipedia, the free encyclopedia Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of 1.00794 u, hydrogen is the lightest element and its ...
2. H - Wikipedia, the free encyclopedia H citation needed] is the eighth letter in the ISO basic Latin alphabet. Contents. 1 History; 2 Name in English; 3 Use in English; 4 Use in other languages; 5 Use ...
3. h-index - Wikipedia, the free encyclopedia The h-index is an index that attempts to measure both the productivity and impact of the published work of a scientist or scholar. The index is based on the set of ...
4. H&M | H&M US Categories; View All · New Arrivals · Living Room · Bedroom · Kitchen · Bathroom · Outdoor · Baby Room · Kids Room · Cushions · Bed Linen · Towels · Bathmats ...
5. Sign In Outlook.com is free modern email service from Microsoft. Get a clean clutter free inbox, easily connect with Office Web Apps and SkyDrive and use it with your ...