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91. | departmentalized study |
| 分组活动 |
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92. | background study |
| 背景资料研究 |
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93. | study geography |
| 研究/学习地理 |
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94. | independent study |
| 独立研究 |
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95. | scientific study |
| 科学的研究 |
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96. | interrelationship study |
| 相互关系研究 |
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97. | ontogenetic study |
| 个体发生研究 |
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98. | interlaboratory study |
| 实验室间的研究 |
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99. | population study |
| 种群研究 |
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100. | headmaster's study |
| 校长办公室 |
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