| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| randomized controlled trial是什么 | 1.62 | 0.6 | 1340 | 48 | 36 |
| randomized | 1.73 | 0.9 | 216 | 67 | 10 |
| controlled | 0.26 | 0.4 | 7624 | 76 | 10 |
| trial是什么 | 0.05 | 0.5 | 9610 | 93 | 14 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| randomized controlled trial是什么 | 1.52 | 0.9 | 2281 | 62 |
