政府必须对付散播和操弄3R课题者，不管对方是什么身分，政府是时候硬起来。这无关限制言论自由，须知国家稳定及社会和谐超越一切，政府必须 ...

The 3R principles are an external page ethical concept formulated in 1959 by British scientists William Russell and Rex Burch. The 3Rs stand for Replacement, Reduction and Refinement. They aim to ...