Our instinctive reaction when someone causes us pain is to strike back.当被别人弄疼时我们本能的反应是反击。It's an absolutely instinctive reaction—if a child falls you pick it up...这完全是本能的反应——如果一个孩子摔倒了你会把他扶起来。an instinctive reaction本...
Cyclobutane exists predominantly in a " butterfly " conformation.环丁烷主要成 “ 蝶式 ” 构象存在.On the other hand , cyclobutane pyrimidine dimmer ( CPD ) just has an effect of cell cycle arrest.而CPD光 产物 ( cyclobutanepyrimidinedimmer...