已知发电机额定容量为15MV·A,超瞬变电抗百分值%=12.5,10.5kV,求电抗的有名值为()n。
A.0.833
B.0.919
C.0.803
D.1.125
参考答案:B
We'll be away for two weeks because we'll have a ___________.
A.two-weeks holiday
B.two weeks' holidays
C.two- week holiday
D.two-weeks' holiday
细菌性肝脓肿的手术适应证、()
A.超声波检查肝区可见较大液平段,全身中毒症状严重
B.慢性局限性肥厚性脓肿
C.位于肝左叶较大脓肿
D.多发性小脓肿,肝区超声波检查未见液平段
E.以上都是