伺服燃油加热器的目的是:().
A.散掉滑油的热量
B.防止伺服燃油结冰
C.只有主燃滑油热交换器不够
D.在空气/滑油热交换器故障时备用
参考答案:B
Competitive threats to the profitability or financial stability of a firm are best categorized as an accounting fraud risk factor related to:()
A. opportunities.
B. incentives and pressures.
C. attitudes and rationalizations.
设备安装时要选择合理的检测方法,包括(),其精度等级应与被被检测设备的精度要求相适应。
A.测量人员
B.装配方法
C.检测仪
D.测量方法
E.吊装方法