下列发文字号的表示方法，哪个是正确的（） ["国办发〔2001〕第45号","国办发（2001）45号","国办发〔2001〕45号","国办发〔2001〕045号"]
The following configuration command was issued on router TK1:ip route 172.16.3.0 255.255.255.0 192.168.2.1.Which of the following statements are true regarding this command?（） [" The command is used to establish a static route."," The default administrative distance is used."," The command is used to configure the default route."," The subnet mask for the source address is 255.255.255.0"," The command is used to establish a stub network"]
种子法规定，农民个人自繁自用常规种子有剩余的，可以在当地集贸市场上出售、串换，不需要办理种子生产经营许可证。许可管理办法对“农民个人”和“当地集贸市场”是如何界定的？出售串换种子量有何限制？
加气子站宜由压缩天然气的接受、贮存（）等系统组成。 ["脱硫","脱水","压缩","加气"]
请简述ERP的四个全景及其对应的全景管理。
试述焊接残余应力对结构的使用有何影响？
