常用的风电机组主要分为()。
A、异步风电机组
B、双馈式异步风电机组
C、永磁直驱风电机组
参考答案:A, B, C
A client's blood glucose level is 45 mg/dL. The nurse should be alert for which signs and symptoms ?()
A.Coma, anxiety, confusion, headache, and cool, moist skin.
B.Kussmaul's respirations, dry skin, hypotension, and bradycardia.
C.Polyuria, polydipsia, hypotension, and hypernatremia.
D.Polyuria, polydipsia, polyphagia, and weight loss.
乳果糖治疗肝性脑病的机理是
A.抑制肠内细菌生长,促进乳酸杆菌繁殖B.与游离氨结合,从而降低血氨C.被细菌分解成乳酸和醋酸,使肠内呈酸性D.与氨合成尿素和鸟氨酸,从而降低血氨E.纠正氨基酸代谢不平衡,抑制假神经递质形成