施工现场消防用具的购置、维修费用应由企业管理费开支，而不是由安全文明施工措施补助费开支。
参考答案：对
—Mary looks down today. What is up?
—Well，________happened between Mary and me is none of your business.
A．wherever
B．whoever
C．whatever
D．no matter what
Y344型封隔器的坐封方式为转管柱坐封。
