Report Says Scientists See Cloning Problems

四年之前,当苏格兰的科学家克隆出“多利羊”的时候,世界一片欢腾,世人展开了绚丽的想象。今日,当我们读到下文时,眼前却呈一片灰暗:Animal clones that have been prodllced often have severe problems such as developmental delays, heart defects and malfunctioning(有故障的)immune systems。现在,克隆“人”的呼声日高,本文的首尾对此提出了冷静的忠告。当然。“克隆”不会从此销声匿迹,暂时的挫折总是酝酿着更加光辉的新篇章。这是科学史和人类发展史发展的规律。