用户的用电计量装置,应当安装在()
A.供电设施一侧
B.受电设施一侧
C.供电设施与受电设施的产权分界处
D.供电设施或受电设施的哪一侧都可以
参考答案:C
Jim _____ the army in 2003. He ____ soldier for 3 years.[ ]
A. has been; joined
B. joined; has been
C. joined; joined
D. has been; has been
以下不能作为诊断肺心病的主要依据是
A.右下肺动脉扩张,横径≥15mmB.肺动脉段突出C.肺型P波D.右束支传导阻滞E.V1呈R/S>1