Table 3.
Professional teachers' evaluation of experimental objectives.
| Category (system) | Test group 1 | Test group 2 | Test group 3 | Control group |
|---|---|---|---|---|
| English features | 9.7 | 8.6 | 8.3 | 9.5 |
| Feature extraction | 9.6 | 8.5 | 8.5 | 8.6 |
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