排入大气的气体安全阀放空管，出口应高出操作面( )m以上，并引出室外。
A．1.5
B．2
C．2.5
D．3
参考答案：C
前期新文化运动的核心内容是 [ ]
A．提倡民主和科学
B．提倡新道德
C．提倡新文学
D．宣传马克思主义
In relation to the management and administration of a company:
(c) Explain the matters that are specifically excluded from the definition of transactions in which there is an interest. (4 marks)
