氨区设备系统运行时不准（），不准（）和（）等设备，检修时系统排放的残液应专门统一收集。
参考答案：敲击；带压修理；紧固法兰
I was asked to sort out the documents but instead of putting them ______ , I totally _______. [ ]
A. in order; messed up them
B. in an order; made a mess of them
C. in the order; messed them up
D. in an order; made a mess of it
写求职信也可以附带有关求职者的证件，例如户口本、个人影集及往来信函等。
