| 1 | Don't wait to have a lot, to share a bit. | |
| 2 | People living in this world are faced with miscellaneous moral risks. | |
| 3 | The structure characteristic of heteropoly acids and their application in catalytic reaction were reviewed. | |
| 4 | In the organic catalytic reaction, the heteropoly compounds show high catalytic activity and selectivity. | |
| 5 | The research for heteropoly acids (HPA) and their salts has a quite important theoretical value and realistic meanings. |