The heroic image of Lei Feng flashed before my eyes.雷锋的英雄形象闪现在我的眼前!Lei Feng, always thrifty, had saved this sum from his allowances.雷锋一向节省, 这笔钱是他从津贴中省下来的.Lei Feng was the admiration of we all.雷锋是值得我们大家赞美的人....
Most of a nere cell's length is the thin, wire - like axon.神经细胞的全长里大部分是细的丝 状 的轴突.The axon must be able to withstand stretching.轴突必须能经得住伸展.ATP released from an axon was indeed triggering calcium influx into Schwann c...