原发性高血压表现为（）
A.左心室前负荷过重
B.左心室后负荷过重
C.右心室前负荷过重
D.右心室后负荷过重
E.右心室前、后负荷均过重
参考答案：B
An 82-year-old female is transferred to the hospital from a long-term care facility because of severe diarrhea. She is weak and dehydrated. Which acid-base imbalance could the client develop as a result of diarrhea
A．Respiratory acidosis.
B．Metabolic acidosis.
C．Carbonic acid deficit.
D．Metabolic alkalosis.
《电力营销工作规程》规定应对电费计算结果进行抽查审核的是（）。
A.营销信息化系统软硬件升级
B.失压数据发生变化
C.新装专变客户首次电量电费计算
D.数据编码变更
