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

2011年1月5日美国新一届国会议员正式宣誓就职，共和党人（）当选新任众议院议长。

A.希拉里·克林顿

B.约翰·博纳

C.罗伯特·盖茨

D.莱昂·帕内塔