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| |||
| series of studies (A series of studies recently conducted in the U.K. suggests space aliens are investing in local real estate. ART Vancouver); series of inquiries (misha-brest) | |||
| a number of studies (Alex_Odeychuk); number of studies (Konstantin 1966) | |||
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ряд исследований : 6 短语, 5 学科 |
| 一般 | 1 |
| 科学的 | 2 |
| 经济 | 1 |
| 计量学 | 1 |
| 马卡罗夫 | 1 |