午夜精品电影,99re热精品视频,在线亚洲+欧美+日本专区,欧美第6页,中国黄色片视频,四虎成人永久,一区二区三区四区五区在线

軟題庫 培訓課程
試卷年份2011年下半年
試題題型【單選題】
試題內(nèi)容

The parties to government procurement refer to the principal entities of all kinds that enjoy rights and undertake obligations in government procurement, including the procuring entities,the ( ) and the procuring agencies.
A、users
B、servers
C、producers
D、suppliers

查看答案

相關試題