别看他______轻轻的，事业可做得不小呀!
A．年龄
B．年代
C．年头
D．年纪
参考答案：D
The nurse is administering warfarin (Coumadin) to a client with deep vein thrombophlebitis. Which laboratory value indicates warfarin is at therapeutic levels ？（）
A．Partial thromboplastin time (PTT) to 2 times the control.
B．Prothrombin time (PT) to 2 times the control.
C．International normalized ratio (INR) of 3 to 4.
D．Hematocrit of 32%.
消防产品现场检查使用的仪器设备无需校准和计量。（）
to 2 times the control.