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<正>China has moved to tighten the control over the export of genetic resources of livestock and poultry with the prom- ......
<正>80年代末至90年代初,我国野生藏羚羊资源不断遭受大规模的武装偷猎和非法走私,种群数量急剧下降,这一珍贵物种已接近绝灭的边......