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aktivitet | |||
henfaldshastighed |
aktivita : 56 phrases in 11 subjects |
Chemistry | 3 |
Construction | 2 |
Earth sciences | 1 |
Economics | 5 |
Environment | 8 |
Health care | 5 |
Microsoft | 24 |
Nuclear physics | 2 |
Physical sciences | 4 |
Politics | 1 |
Research and development | 1 |