题目内容
OnDec24 _______,theUSCongressamendstheLaboratoryAnimalWelfareAct(P.L.91-579),renamedtheAnimalWelfareAct,extendingprotectiontoallwarm-bloodedanimalsinlaboratories.
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On Dec 23 ______, the US Food Security Act (P.L. 99-198), an omnibus farm bill, was adopted into law.
The Animals (Scientific Procedures) Act was passed in ______ in the UK.
The Animal Welfare Act was passed in ______ in the UK.
Mice, rats, fish, amphibians, and reptiles together account for over ___% of research animals.
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