巴比妥类药物急性中毒致死的主要原因是
A．心脏骤停B．血压过度下降C．深度昏迷D．支气管痉挛E．呼吸中枢麻痹
参考答案：E
A client hospitalized with pneumonia has thick, tenacious secretions. To help liquefy these secretions, the nurse should
A. turn the client every 2 hours.B. elevate the head of the bed 30 degrees.C. encourage increased fluid intake.D. maintain a cool room temperatur
（）是专门用于勾勒边缘线的工具，它的笔头笔毛较少，笔身较短。
A、描线笔
B、排笔
C、造型毛笔
D、水晶笔
