畸形小头

Most clinicians define microcephaly as being less than 3 standard deiations below the mean of expected head circumference.

大多数临床医生将头小畸形定义为小于预期头围均值的3个标准差。

This year, several groups published evidence that natural selection has recently favored a handful of uniquely human genes expressed in the brain, including those for endorphins and a sialic acid receptor, and genes involved in microcephaly.

今年（2005年），一些研究小组找到了证据证明自然选择在近期赋予了人类一些在大脑表达的、独有的基因，包括表达内啡肽和一种唾液酸受体的基因，以及与头小畸形相关的基因。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。