关节活动度测量被允许的误差为()
A.0°~2°
B.1°~3°
C.2°~4°
D.3°~5°
E.4°~6°
参考答案:D
. —Why didn’t you response to their greeting?
—Sorry. I ______they ______ to me.
A.don’t realize; are waving
B.don’t realize; were waving
C.didn’t realize; were waving
D.didn’t realize; are waving
冶炼工程自动化控制系统调整及试运行时,与电气设备有关的( )等装置均应投入运行。
A.能源介质
B.冷却系统
C.环保系统
D.润滑系统
E.保护系统