| 近年用红外激光技术研究液氢，发现范德华力也可以引起微粒间反应，已知在液氢中有氢分子和质子形成的H3+离子，其构型为等边三角型，属于二电子三中心离子．同时H3+ 和氢分子可进一步形成Hn+有关判断正确的是（ ） A．H3+的电子式为 B．H3+可进行反应，在液态氢中形成H4+、H6+、H9+ C．H3+可在液态氢中形成H5+、H7+、H9+ D．H3+广泛存在于固态、液态和气态氢中 |
答案：C
| 阅读下面短文，并做短文后面的题目，从四个选项上中，选出最佳答案。 | ||||
|
| 1. ___ can draw beautiful pictures. |
[ ] |
| A. Wang Ling B. Li Xiaoping C. Zhao Liming D. Sun Liang |
| 2. After you call 8734956, ___ is coming. |
[ ] |
| A. a driver B. a manager C. a doctor D. an artist |
| 3. My cousin is ill. I should call ___ . |
[ ] |
| A. 13085723841 B. 6570599 C. 8734956 D. 3874132 |
| 4. New Century Computer Centre is on___ . |
[ ] |
| A. Zhongshan Street B. Zhonghua Road C. Huaxi Street D. Beijing Road |
| 5. If you want to___ , you can ask Li Xiaoping for help. |
[ ] |
| A. see a doctor B. buy a computer C. learn how to draw pictures D. take a taxi |
