电泳
企业对现金清查中发现的确实无法查明原因的长款，应将其计人（）。 ["其他业务收人","资本公积","营业外收入","盈余公积"]
离心泵的对轮拆卸要注意哪些事项？其检修的主要内容有哪些？
保证保险
If the root bridge fails， configuration BPDUs will no longer be sent. Which STP timer will have toexpire before the other switches can actively restore connectivity with topology change procedureof STP？（） ["hello timer","BPDU timer","Forward_delay timer","Max_age timer","Dead timer","Wait timer"]
作态
