在生产上，需要一定生长年龄的枝条。以下可作为一种识别枝条年龄依据的是（）。 ["叶痕","束痕","节","芽鳞痕"]
关于IP地址和域名叙述正确的是（）。 ["域名等价于IP地址，两者完全一致","域名没有层次，IP地址具有层次","有了域名后，互联网计算机不需要IP地址就可以相互通信了","域名系统将域名与IP地址建立一一映射关系，从而可以方便地访问其他计算机"]
At least one reinspection shall be made on each vessel holding a Certificate of Inspection valid for two years. This inspection shall be held between the tenth and fourteenth months of the duration period of the certificate and shall be（）. ["at the discretion of the inspector，but in no greater detail than required for original certification","at the discretion of the inspector，but in no lesser detail than required for original certification","generally similar in scope to the inspection required for certification，but in less detail","equivalent to the inspection required for certificatio"]
www.pku.edu.cn是（）。 ["非营利机构网站","商用机构网站","政府机构网站","教育机构网站"]
劳动争议处理的原则涵盖（） ["着重调解及时处理","查清事实依法处理","法律面前一律平等","公开公正"]
简述制动接口单元TIU的功能。
