已进行实验室试验和现场试验。
俄罗斯生物学家 G. F. Gause 在试验室进行了大量的两个物种的实验，试验中，当只有单一的资源时，其中一个物种将会灭绝。
The Russian biologist G. F. Gause performed numerous tow-species experiments in the laboratory, in which one of the species became extinct when only a single kind of resource was available.
那些试验都是在实验室生长的癌细胞，而非活的动物（体内）进行的。
Those studies were done in cancer cells grown in the lab, not in living animals (in vivo).
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