监理单位与项目法人之间是委托与被委托的( )，与被监理单位是监理与被监理关系。
A．代理关系
B．法律关系
C．合同关系
D．经济关系
参考答案：C
经纪人从事经纪活动，应当遵守国家法律法规，遵循（）诚实的原则。
A.平等
B.自愿
C.互利
D.诚实信用
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
A.posted with instruction on the operation of the systm
B.ventilated and equipped with explosion-proof switches
C.painted with red and black diagonal stripes
D.equipped with a battery powered source of emergency lighting
