除氧器水位降低至中心线以下225mm时,联跳()。
A、三台给水泵
B、二台汽泵
C、跳电泵,汽泵不跳
参考答案:B
As a senior student, I am determined to work harder in order to___the desired university.
A.admit by
B.be admitted by
C.admit into
D.be admitted into
有关原发性高血压的并发症,下列哪些正确()
A.心、脑、肾等器官是主要受累脏器
B.脑卒中的发病率比心肌梗死高5倍左右
C.恶性高血压以脑并发症最为突出
D.眼底病变与高血压的严重程度直接有关
E.高血压脑病症状出现可能与脑水肿有关