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| 阶段 | 内容 | 课程 |
|---|---|---|
| 精讲班 | 公共英语一级精讲班 | 28课时 |
| 公共英语二级精讲班 | 56课时 | |
| 公共英语三级精讲班 | 80课时 | |
| 公共英语四级精讲班 | 54课时 | |
| 课课练 | 公共英语一级习题班 | 28课时 |
| 公共英语二级习题班 | 56课时 | |
| 公共英语三级习题班 | 60课时 | |
| 公共英语四级习题班 | 77课时 | |
| 真题解析班 | 公共英语一级真题解析班 | 35课时 |
| 公共英语二级真题解析班 | 55课时 | |
| 公共英语三级真题解析班 | 72课时 | |
| 公共英语四级真题解析班 | 22课时 | |
| 口试常见话题 | 公共英语一级（口试常见话题）考点解析班 | 19课时 |
| 公共英语二级（口试常见话题）考点解析班 | 20课时 | |
| 公共英语三级（口试常见话题）考点解析班 | 13课时 | |
| 公共英语四级（口试常见话题）考点解析班 | 15课时 |
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Research on animal intelligence also makes me wonder what experiments animals would ___13___ on humans if they had the chance. Every cat with an owner, ___14___, is running a small-scale study in operant conditioning. We believe that ___15___ animals ran the labs, they would test us to ___16___ the limits of our patience, our faithfulness, our memory for terrain. They would try to decide what intelligence in humans is really ___17___, not merely how much of it there is. ___18___, they would hope to study a ___19___ question: Are humans actually aware of the world they live in? ___20___ the results are inconclusive.
13. [A] deliver [B] carry [C] perform [D] apply
14. [A] by chance [B] in contrast [C] as usual [D] for instance
15. [A] if [B] unless [C] as [D] lest
16. [A] moderate [B] overcome [C] determine [D] reach
17. [A] at [B] for [C] after [D] with
18. [A] Above all [B] After all [C] However [D] Otherwise
19. [A] fundamenta
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