当t＞t0.05，v时（）
A.P＜0.05
B.0.05＞P＞0.01
C.P＞0.01
D.P＜0.01
E.P＞0.05
参考答案：A
The nurse is caring for a client who underwent a lumbar laminectomy 2 days ago. Which of the following findings should the nurse consider abnormal
A. More back pain than the first postoperative day.B. Paresthesia in the dermatomes near the wounds.C. Urinary retention or incontinence.D. Temperature of 99.2°F(37.3℃).
共发射极放大电路中三极管的集电极静态电流的大小与（）无关。
A.集电极电阻
B.基极电阻
C.三极管的β
D.电源电压
