在带控制点工艺流程图中,仪表位号的第一个字母表示()。
A、被测变量
B、仪表功能
C、工段号
D、管段序号
参考答案:A
----Has the teacher who was hurt in the earthquake been taken good care of?
----Ever since she was sent to the hospital, she has never been _______.
A.put out
B.left alone
C.looked after
D.fallen into
人类工效学的研究中心是()。
A.以人为中心
B.以环境为中心
C.以机器设备为中心
D.以教育为中心
E.以管理为中心