液压牵引采煤机补油回路用来对主回路的外部漏损补充油液。（）
参考答案：对
The nurse is caring for a client with acute osteomyelitis in the right tibi
a. Which of the following measures is most appropriate when repositioning the client’s legA. Hold the leg by the ankle when repositioning to avoid touching the tibia.B. Support the leg above and below the affected area when positioning.C. Have the client move the leg by himself to decrease pain.D. Apply warm moist compresses to the leg before repositionin
运动神经元疾病的发病机制中不包括（）
A.分子遗传机制、氧化应激机制
B.兴奋性氨基酸介导的神经毒性机制、神经营养因子缺乏机制
C.中毒机制、病毒感染机制
D.年龄老化机制
E.部分研究发现细胞凋亡、一氧化氮及代谢异常也可能参与其中
