Which statement about OSPF ASBR summary LSA is true？（） ["It is generated by an ASBR and indicates the reachability to an ABR located in another area.","It is generated by ABR and indicates the reachability to an ASBR located in another AS.","It is generated by ABR and indicates reachability to itself.","It is generated by ABR and indicates the reachability to an ASBR located in another area.","It is generated by ASBR and indicates the reachability to an ABR."]
希腊化美术的特点？
工程竣工后移交哪些技术资料？
事故树中，符号表示的意义是（） ["或门","条件或门","与门","条件与门"]
信托公司应当妥善保管有关业务经营活动的完整记录，原始凭证及有关资料，这些文件资料的保管期限，从财产信托终止之日起，不得少于（）年。 ["5","10","15","20"]
虽然情报信息网络系统初步建成，但总体仍处于初级、自然流转阶段。
