备用取样冷却水泵的进出口门应常关，泵联锁开关应在联锁位置。
参考答案：错
His services to the company was______with a present.
A．admitted
B．acknowledged
C．contributed
D．accepted
调查报告的正文的结构方式有( )形式。
A．5
B．2
C．4
D．3
